diff --git a/Cargo.lock b/Cargo.lock
index 3d58dfe..8962da8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -504,6 +504,7 @@ dependencies = [
  "rayon",
  "rodio",
  "serde",
+ "serde_json",
  "tempfile",
  "vid_dup_finder_lib",
  "xxhash-rust",
@@ -1183,9 +1184,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.108"
+version = "0.2.109"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8521a1b57e76b1ec69af7599e75e38e7b7fad6610f037db8c79b127201b5d119"
+checksum = "f98a04dce437184842841303488f70d0188c5f51437d2a834dc097eafa909a01"
 
 [[package]]
 name = "libloading"
@@ -1232,9 +1233,9 @@ checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
 
 [[package]]
 name = "memoffset"
-version = "0.6.4"
+version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59accc507f1338036a0477ef61afdae33cde60840f4dfe481319ce3ad116ddf9"
+checksum = "5aa361d4faea93603064a027415f07bd8e1d5c88c9fbf68bf56a285428fd79ce"
 dependencies = [
  "autocfg",
 ]
diff --git a/czkawka_core/Cargo.toml b/czkawka_core/Cargo.toml
index e1411de..d9a067f 100644
--- a/czkawka_core/Cargo.toml
+++ b/czkawka_core/Cargo.toml
@@ -44,8 +44,11 @@ tempfile = "3.2.0"
 # Video Duplactes
 vid_dup_finder_lib = "0.1.0"
 ffmpeg_cmdline_utils = "0.1.0"
+
+# Saving/Loading Cache
 serde = "1.0.130"
 bincode = "1.3.3"
+serde_json = "1.0.72"
 
 
 [features]
diff --git a/czkawka_core/src/similar_videos.rs b/czkawka_core/src/similar_videos.rs
index fc91580..5fd0f28 100644
--- a/czkawka_core/src/similar_videos.rs
+++ b/czkawka_core/src/similar_videos.rs
@@ -423,7 +423,7 @@ impl SimilarVideos {
                     Ok(t) => t,
                     Err(e) => {
                         return {
-                            file_entry.error = format!("Failed to hash file, {}", e);
+                            file_entry.error = format!("Failed to hash file, reason {}", e);
                             Some(file_entry)
                         }
                     }
@@ -592,14 +592,6 @@ impl PrintResults for SimilarVideos {
 
 pub fn save_hashes_to_file(hashmap: &BTreeMap<String, FileEntry>, text_messages: &mut Messages) {
     if let Some(proj_dirs) = ProjectDirs::from("pl", "Qarmin", "Czkawka") {
-        // Lin: /home/username/.cache/czkawka
-        // Win: C:\Users\Username\AppData\Local\Qarmin\Czkawka\cache
-        // Mac: /Users/Username/Library/Caches/pl.Qarmin.Czkawka
-
-        // Saves data
-        // path//file_size//modified_date//num_frames//duration//hash1//hash2 etc.
-        // number of hashes is equal to HASH_QWORDS(19 at this moment)
-
         let cache_dir = PathBuf::from(proj_dirs.cache_dir());
         if cache_dir.exists() {
             if !cache_dir.is_dir() {
@@ -610,7 +602,8 @@ pub fn save_hashes_to_file(hashmap: &BTreeMap<String, FileEntry>, text_messages:
             text_messages.messages.push(format!("Cannot create config dir {}, reason {}", cache_dir.display(), e));
             return;
         }
-        let cache_file = cache_dir.join("cache_similar_videos.bin");
+
+        let cache_file = cache_dir.join(cache_dir.join(get_cache_file()));
         let file_handler = match OpenOptions::new().truncate(true).write(true).create(true).open(&cache_file) {
             Ok(t) => t,
             Err(e) => {
@@ -620,25 +613,43 @@ pub fn save_hashes_to_file(hashmap: &BTreeMap<String, FileEntry>, text_messages:
         };
 
         let writer = BufWriter::new(file_handler);
+        #[cfg(not(debug_assertions))]
         if let Err(e) = bincode::serialize_into(writer, hashmap) {
-            text_messages.messages.push(format!("cannot write data to cache file {}, reason {}", cache_file.display(), e));
+            text_messages.messages.push(format!("Cannot write data to cache file {}, reason {}", cache_file.display(), e));
+            return;
         }
+        #[cfg(debug_assertions)]
+        if let Err(e) = serde_json::to_writer(writer, hashmap) {
+            text_messages.messages.push(format!("Cannot write data to cache file {}, reason {}", cache_file.display(), e));
+            return;
+        }
+
+        text_messages.messages.push(format!("Properly saved to file {} cache entries.", hashmap.len()));
     }
 }
 
 pub fn load_hashes_from_file(text_messages: &mut Messages, delete_outdated_cache: bool) -> Option<BTreeMap<String, FileEntry>> {
     if let Some(proj_dirs) = ProjectDirs::from("pl", "Qarmin", "Czkawka") {
         let cache_dir = PathBuf::from(proj_dirs.cache_dir());
-        let cache_file = cache_dir.join("cache_similar_videos.bin");
+        let cache_file = cache_dir.join(get_cache_file());
         let file_handler = match OpenOptions::new().read(true).open(&cache_file) {
             Ok(t) => t,
             Err(_inspected) => {
-                // text_messages.messages.push(format!("Cannot find or open cache file {}", cache_file.display())); // This shouldn't be write to output
+                // text_messages.messages.push(format!("Cannot find or open cache file {}", cache_file.display())); // No error warning
                 return None;
             }
         };
 
         let reader = BufReader::new(file_handler);
+        #[cfg(debug_assertions)]
+        let mut hashmap_loaded_entries: BTreeMap<String, FileEntry> = match serde_json::from_reader(reader) {
+            Ok(t) => t,
+            Err(e) => {
+                text_messages.warnings.push(format!("Failed to load data from cache file {}, reason {}", cache_file.display(), e));
+                return None;
+            }
+        };
+        #[cfg(not(debug_assertions))]
         let mut hashmap_loaded_entries: BTreeMap<String, FileEntry> = match bincode::deserialize_from(reader) {
             Ok(t) => t,
             Err(e) => {
@@ -648,15 +659,33 @@ pub fn load_hashes_from_file(text_messages: &mut Messages, delete_outdated_cache
         };
 
         // Don't load cache data if destination file not exists
-        hashmap_loaded_entries.retain(|src_path, _file_entry| Path::new(src_path).exists() && !delete_outdated_cache);
+        if delete_outdated_cache {
+            hashmap_loaded_entries.retain(|src_path, _file_entry| Path::new(src_path).exists());
+        }
+
+        text_messages.messages.push(format!("Properly loaded {} cache entries.", hashmap_loaded_entries.len()));
 
         return Some(hashmap_loaded_entries);
     }
 
-    text_messages.messages.push("Cannot find or open system config dir to save cache file".to_string());
+    text_messages.messages.push("Cannot find or open system config dir to save cache file.".to_string());
     None
 }
 
+fn get_cache_file() -> String {
+    let extension;
+    #[cfg(debug_assertions)]
+    {
+        extension = "json";
+    }
+    #[cfg(not(debug_assertions))]
+    {
+        extension = "bin";
+    }
+
+    format!("cache_similar_videos.{}", extension)
+}
+
 pub fn check_if_ffmpeg_is_installed() -> bool {
     let vid = "999999999999999999.txt";
     if let Err(DetermineVideo { src_path: _a, error: FfmpegNotFound }) = VideoHash::from_path(&vid) {
diff --git a/czkawka_gui/src/connect_button_hardlink.rs b/czkawka_gui/src/connect_button_hardlink.rs
index 324a73f..0564e48 100644
--- a/czkawka_gui/src/connect_button_hardlink.rs
+++ b/czkawka_gui/src/connect_button_hardlink.rs
@@ -11,15 +11,18 @@ use crate::help_functions::*;
 use crate::notebook_enums::*;
 
 pub fn connect_button_hardlink_symlink(gui_data: &GuiData) {
+    // Hardlinking
     {
         let buttons_hardlink = gui_data.bottom_buttons.buttons_hardlink.clone();
 
         let gui_data = gui_data.clone();
 
         buttons_hardlink.connect_clicked(move |_| {
-            glib::MainContext::default().spawn_local(sym_hard_link_things(gui_data.clone(), false));
+            glib::MainContext::default().spawn_local(sym_hard_link_things(gui_data.clone(), true));
         });
     }
+
+    // Symlinking
     {
         let buttons_symlink = gui_data.bottom_buttons.buttons_symlink.clone();
 
@@ -46,7 +49,7 @@ pub async fn sym_hard_link_things(gui_data: GuiData, hardlinking: bool) {
     let tree_view = &main_tree_views[nb_number as usize];
     let nb_object = &NOTEBOOKS_INFOS[nb_number as usize];
 
-    let column_color = nb_object.column_color.expect("Symlinking can be only used for tree views with grouped results");
+    let column_color = nb_object.column_color.expect("Linking can be only used for tree views with grouped results");
 
     let check_button_settings_confirm_link = gui_data.settings.check_button_settings_confirm_link.clone();
 
@@ -57,6 +60,7 @@ pub async fn sym_hard_link_things(gui_data: GuiData, hardlinking: bool) {
     if !check_if_can_link_files(&check_button_settings_confirm_link, &window_main).await {
         return;
     }
+
     if !check_if_changing_one_item_in_group_and_continue(tree_view, column_color, nb_object.column_selection, &window_main).await {
         return;
     }
diff --git a/czkawka_gui/src/connect_button_select.rs b/czkawka_gui/src/connect_button_select.rs
index 920c4ae..aba1b92 100644
--- a/czkawka_gui/src/connect_button_select.rs
+++ b/czkawka_gui/src/connect_button_select.rs
@@ -1,41 +1,23 @@
-use std::collections::HashMap;
-
 use gtk::prelude::*;
 
 use crate::gui_data::GuiData;
 use crate::gui_popovers::GuiPopovers;
-use crate::help_functions::PopoverTypes;
+use crate::help_functions::{PopoverTypes, NOTEBOOKS_INFOS};
 use crate::notebook_enums::*;
 
 pub fn connect_button_select(gui_data: &GuiData) {
-    let mut hashmap: HashMap<NotebookMainEnum, Vec<PopoverTypes>> = Default::default();
-    {
-        hashmap.insert(NotebookMainEnum::SimilarImages, vec![PopoverTypes::All, PopoverTypes::Size, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::Date]);
-        hashmap.insert(NotebookMainEnum::SimilarVideos, vec![PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::Date, PopoverTypes::Size]);
-        hashmap.insert(NotebookMainEnum::Duplicate, vec![PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::Date]);
-        hashmap.insert(NotebookMainEnum::SameMusic, vec![PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::Date, PopoverTypes::Size]);
-
-        hashmap.insert(NotebookMainEnum::EmptyFiles, vec![PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom]);
-        hashmap.insert(NotebookMainEnum::EmptyDirectories, vec![PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom]);
-        hashmap.insert(NotebookMainEnum::BigFiles, vec![PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom]);
-        hashmap.insert(NotebookMainEnum::Symlinks, vec![PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom]);
-        hashmap.insert(NotebookMainEnum::Temporary, vec![PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom]);
-        hashmap.insert(NotebookMainEnum::BrokenFiles, vec![PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom]);
-    }
-    assert_eq!(hashmap.len(), NUMBER_OF_NOTEBOOK_MAIN_TABS);
-
     let popovers = gui_data.popovers.clone();
     let notebook_main = gui_data.main_notebook.notebook_main.clone();
     let popover_select = gui_data.popovers.popover_select.clone();
     let buttons_select = gui_data.bottom_buttons.buttons_select.clone();
 
     buttons_select.connect_clicked(move |_| {
-        show_required_popovers(&popovers, &to_notebook_main_enum(notebook_main.current_page().unwrap()), &hashmap);
+        show_required_popovers(&popovers, &to_notebook_main_enum(notebook_main.current_page().unwrap()));
         popover_select.popup();
     });
 }
 
-fn show_required_popovers(popovers: &GuiPopovers, current_mode: &NotebookMainEnum, hashmap: &HashMap<NotebookMainEnum, Vec<PopoverTypes>>) {
+fn show_required_popovers(popovers: &GuiPopovers, current_mode: &NotebookMainEnum) {
     let buttons_popover_select_all = popovers.buttons_popover_select_all.clone();
     let buttons_popover_unselect_all = popovers.buttons_popover_unselect_all.clone();
     let buttons_popover_reverse = popovers.buttons_popover_reverse.clone();
@@ -53,9 +35,9 @@ fn show_required_popovers(popovers: &GuiPopovers, current_mode: &NotebookMainEnu
     let separator_select_image_size = popovers.separator_select_image_size.clone();
     let separator_select_reverse = popovers.separator_select_reverse.clone();
 
-    let vec = hashmap.get(current_mode).unwrap();
+    let arr = &NOTEBOOKS_INFOS[current_mode.clone() as usize].available_modes;
 
-    if vec.contains(&PopoverTypes::All) {
+    if arr.contains(&PopoverTypes::All) {
         buttons_popover_select_all.show();
         buttons_popover_unselect_all.show();
     } else {
@@ -63,7 +45,7 @@ fn show_required_popovers(popovers: &GuiPopovers, current_mode: &NotebookMainEnu
         buttons_popover_unselect_all.hide();
     }
 
-    if vec.contains(&PopoverTypes::Size) {
+    if arr.contains(&PopoverTypes::Size) {
         buttons_popover_select_all_images_except_biggest.show();
         buttons_popover_select_all_images_except_smallest.show();
         separator_select_image_size.show();
@@ -73,7 +55,7 @@ fn show_required_popovers(popovers: &GuiPopovers, current_mode: &NotebookMainEnu
         separator_select_image_size.hide();
     }
 
-    if vec.contains(&PopoverTypes::Reverse) {
+    if arr.contains(&PopoverTypes::Reverse) {
         buttons_popover_reverse.show();
         separator_select_reverse.show();
     } else {
@@ -81,7 +63,7 @@ fn show_required_popovers(popovers: &GuiPopovers, current_mode: &NotebookMainEnu
         separator_select_reverse.hide();
     }
 
-    if vec.contains(&PopoverTypes::Custom) {
+    if arr.contains(&PopoverTypes::Custom) {
         buttons_popover_select_custom.show();
         buttons_popover_unselect_custom.show();
         separator_select_custom.show();
@@ -91,7 +73,7 @@ fn show_required_popovers(popovers: &GuiPopovers, current_mode: &NotebookMainEnu
         separator_select_custom.hide();
     }
 
-    if vec.contains(&PopoverTypes::Date) {
+    if arr.contains(&PopoverTypes::Date) {
         buttons_popover_select_all_except_oldest.show();
         buttons_popover_select_all_except_newest.show();
         buttons_popover_select_one_oldest.show();
diff --git a/czkawka_gui/src/help_functions.rs b/czkawka_gui/src/help_functions.rs
index 34a7a85..206d8b2 100644
--- a/czkawka_gui/src/help_functions.rs
+++ b/czkawka_gui/src/help_functions.rs
@@ -42,7 +42,7 @@ pub enum PopoverTypes {
 
 pub struct NotebookObject {
     pub notebook_type: NotebookMainEnum,
-    pub available_modes: [PopoverTypes; 4],
+    pub available_modes: [PopoverTypes; 5],
     pub column_activatable_button: Option<i32>,
     pub column_path: i32,
     pub column_name: i32,
@@ -57,7 +57,7 @@ pub struct NotebookObject {
 pub static NOTEBOOKS_INFOS: [NotebookObject; NUMBER_OF_NOTEBOOK_MAIN_TABS] = [
     NotebookObject {
         notebook_type: NotebookMainEnum::Duplicate,
-        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::Date],
+        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::Date, PopoverTypes::None],
         column_activatable_button: Some(ColumnsDuplicates::ActivatableSelectButton as i32),
         column_path: ColumnsDuplicates::Path as i32,
         column_name: ColumnsDuplicates::Name as i32,
@@ -70,7 +70,7 @@ pub static NOTEBOOKS_INFOS: [NotebookObject; NUMBER_OF_NOTEBOOK_MAIN_TABS] = [
     },
     NotebookObject {
         notebook_type: NotebookMainEnum::EmptyDirectories,
-        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::None],
+        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::None, PopoverTypes::None],
         column_activatable_button: None,
         column_path: ColumnsEmptyFolders::Path as i32,
         column_name: ColumnsEmptyFolders::Name as i32,
@@ -83,7 +83,7 @@ pub static NOTEBOOKS_INFOS: [NotebookObject; NUMBER_OF_NOTEBOOK_MAIN_TABS] = [
     },
     NotebookObject {
         notebook_type: NotebookMainEnum::BigFiles,
-        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::None],
+        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::None, PopoverTypes::None],
         column_activatable_button: None,
         column_path: ColumnsBigFiles::Path as i32,
         column_name: ColumnsBigFiles::Name as i32,
@@ -96,7 +96,7 @@ pub static NOTEBOOKS_INFOS: [NotebookObject; NUMBER_OF_NOTEBOOK_MAIN_TABS] = [
     },
     NotebookObject {
         notebook_type: NotebookMainEnum::EmptyFiles,
-        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::None],
+        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::None, PopoverTypes::None],
         column_activatable_button: None,
         column_path: ColumnsEmptyFiles::Path as i32,
         column_name: ColumnsEmptyFiles::Name as i32,
@@ -109,7 +109,7 @@ pub static NOTEBOOKS_INFOS: [NotebookObject; NUMBER_OF_NOTEBOOK_MAIN_TABS] = [
     },
     NotebookObject {
         notebook_type: NotebookMainEnum::Temporary,
-        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::None],
+        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::None, PopoverTypes::None],
         column_activatable_button: None,
         column_path: ColumnsTemporaryFiles::Path as i32,
         column_name: ColumnsTemporaryFiles::Name as i32,
@@ -122,7 +122,7 @@ pub static NOTEBOOKS_INFOS: [NotebookObject; NUMBER_OF_NOTEBOOK_MAIN_TABS] = [
     },
     NotebookObject {
         notebook_type: NotebookMainEnum::SimilarImages,
-        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::Date],
+        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::Date, PopoverTypes::Size],
         column_activatable_button: Some(ColumnsSimilarImages::ActivatableSelectButton as i32),
         column_path: ColumnsSimilarImages::Path as i32,
         column_name: ColumnsSimilarImages::Name as i32,
@@ -135,7 +135,7 @@ pub static NOTEBOOKS_INFOS: [NotebookObject; NUMBER_OF_NOTEBOOK_MAIN_TABS] = [
     },
     NotebookObject {
         notebook_type: NotebookMainEnum::SimilarVideos,
-        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::Date],
+        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::Date, PopoverTypes::Size],
         column_activatable_button: Some(ColumnsSimilarVideos::ActivatableSelectButton as i32),
         column_path: ColumnsSimilarVideos::Path as i32,
         column_name: ColumnsSimilarVideos::Name as i32,
@@ -148,7 +148,7 @@ pub static NOTEBOOKS_INFOS: [NotebookObject; NUMBER_OF_NOTEBOOK_MAIN_TABS] = [
     },
     NotebookObject {
         notebook_type: NotebookMainEnum::SameMusic,
-        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::Date],
+        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::Date, PopoverTypes::Size],
         column_activatable_button: Some(ColumnsSameMusic::ActivatableSelectButton as i32),
         column_path: ColumnsSameMusic::Path as i32,
         column_name: ColumnsSameMusic::Name as i32,
@@ -161,7 +161,7 @@ pub static NOTEBOOKS_INFOS: [NotebookObject; NUMBER_OF_NOTEBOOK_MAIN_TABS] = [
     },
     NotebookObject {
         notebook_type: NotebookMainEnum::Symlinks,
-        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::None],
+        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::None, PopoverTypes::None],
         column_activatable_button: None,
         column_path: ColumnsInvalidSymlinks::Path as i32,
         column_name: ColumnsInvalidSymlinks::Name as i32,
@@ -174,7 +174,7 @@ pub static NOTEBOOKS_INFOS: [NotebookObject; NUMBER_OF_NOTEBOOK_MAIN_TABS] = [
     },
     NotebookObject {
         notebook_type: NotebookMainEnum::BrokenFiles,
-        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::None],
+        available_modes: [PopoverTypes::All, PopoverTypes::Reverse, PopoverTypes::Custom, PopoverTypes::None, PopoverTypes::None],
         column_activatable_button: None,
         column_path: ColumnsBrokenFiles::Path as i32,
         column_name: ColumnsBrokenFiles::Name as i32,
@@ -357,33 +357,37 @@ pub fn split_path(path: &Path) -> (String, String) {
 pub fn print_text_messages_to_text_view(text_messages: &Messages, text_view: &gtk::TextView) {
     let mut messages: String = String::from("");
     if !text_messages.messages.is_empty() {
-        messages += "############### MESSAGES ###############\n";
+        messages += format!("############### MESSAGES({}) ###############\n", text_messages.messages.len()).as_str();
     }
     for text in &text_messages.messages {
         messages += text.as_str();
         messages += "\n";
     }
-    if !text_messages.messages.is_empty() {
-        messages += "\n";
-    }
+    // if !text_messages.messages.is_empty() {
+    //     messages += "\n";
+    // }
     if !text_messages.warnings.is_empty() {
-        messages += "############### WARNINGS ###############\n";
+        messages += format!("############### WARNINGS({}) ###############\n", text_messages.warnings.len()).as_str();
     }
     for text in &text_messages.warnings {
         messages += text.as_str();
         messages += "\n";
     }
-    if !text_messages.warnings.is_empty() {
-        messages += "\n";
-    }
+    // if !text_messages.warnings.is_empty() {
+    //     messages += "\n";
+    // }
     if !text_messages.errors.is_empty() {
-        messages += "############### ERRORS ###############\n";
+        messages += format!("############### ERRORS({}) ###############\n", text_messages.errors.len()).as_str();
     }
     for text in &text_messages.errors {
         messages += text.as_str();
         messages += "\n";
     }
-    if !text_messages.errors.is_empty() {
+    // if !text_messages.errors.is_empty() {
+    //     messages += "\n";
+    // }
+
+    if !text_messages.messages.is_empty() || !text_messages.warnings.is_empty() || !text_messages.errors.is_empty() {
         messages += "\n";
     }
 
diff --git a/instructions/Compilation.md b/instructions/Compilation.md
index 25f3cf0..bfaf652 100644
--- a/instructions/Compilation.md
+++ b/instructions/Compilation.md
@@ -1,10 +1,10 @@
 # Compiling Czkawka from sources
 
 ## Requirements
-Program  | Min  | What for
----------|------|------------------------------------------------------------
-Rust     | 1.53 | Czkawka, aims to support the latest available version of Rust on Ubuntu 20.04
-GTK      | 3.22 | Only for the `GTK` backend
+| Program | Min  | What for                                                                      |
+|---------|------|-------------------------------------------------------------------------------|
+| Rust    | 1.53 | Czkawka, aims to support the latest available version of Rust on Ubuntu 20.04 |
+| GTK     | 3.24 | Only for the `GTK` backend                                                    |
 
 If you only want the terminal version without a GUI, just skip all the packages with `gtk` in their names.
 
diff --git a/instructions/Installation.md b/instructions/Installation.md
index c65e03a..0c59076 100644
--- a/instructions/Installation.md
+++ b/instructions/Installation.md
@@ -3,7 +3,7 @@
 ### Linux
 If you use Snap, Flatpak or Appimage, you need to only install ffmpeg if you want to use Similar Videos tool.
 
-For Czkawka GUI you are required to have at least `GTK 3.22` and also `Alsa` installed (for finding broken music files, but it is disabled by default).  
+For Czkawka GUI you are required to have at least `GTK 3.24` and also `Alsa` installed (for finding broken music files, but it is disabled by default).  
 `FFmpeg` in Similar Videos is non required dependency - app will work, but this tool will throw errors, so I recommend to install it.  
 It should be installed by default on all the most popular distros.
 #### Ubuntu/Debian/Linux Mint
@@ -78,7 +78,7 @@ You can update the package with the same command.
 ```
 sudo snap install czkawka
 ```
-By default, Snap can only access the files in your home directory. You have to allow czkawka access to all the drives:
+By default, Snap can only access the files in your home directory. You have to allow Czkawka access to all the drives:
 
 ```
 sudo snap connect czkawka:removable-media
diff --git a/instructions/Instruction.md b/instructions/Instruction.md
index 24ac191..b5ce785 100644
--- a/instructions/Instruction.md
+++ b/instructions/Instruction.md
@@ -70,6 +70,7 @@ Currently, Czkawka stores few config and cache files on disk:
 - `cache_similar_image_SIZE_HASH_FILTER.txt` - stores cache data and hashes which may be used later without needing to compute image hash again - editing this file manually is not recommended, but it is allowed. Each algorithms uses its own file, because hashes are completely different in each.
 - `cache_broken_files.txt` - stores cache data of broken files
 - `cache_duplicates_Blake3.txt` - stores cache data of duplicated files, to not suffer too big of a performance hit when saving/loading file, only already fully hashed files bigger than 5MB are stored. Similar files with replaced `Blake3` to e.g. `SHA256` may be shown, when support for new hashes will be introduced in Czkawka.
+- `cache_similar_videos.bin/json` - stores cache data of video files. Depending on usage(debug/release build) it will produce bin file(fast, but unable to change) or json(slow, but well formatted).
 
 Config files are located in this path:
 
@@ -203,7 +204,7 @@ It is a tool for finding similar images that differ e.g. in watermark, size etc.
 The tool first collects images with specific extensions that can be checked - `[".jpg", ".jpeg", ".png", ".bmp", ".tiff", ".tif", ".pnm", ".tga", ".ff", ".gif", ".jif", ".jfi", ".ico", ".webp", ".avif"]`.
 
 Next cached data is loaded from file to prevent hashing twice the same file.  
-The cache which points to non existing data is deleted automatically.
+The cache which points to non existing data, by default is deleted automatically.
 
 Then a perceptual hash is created for each image which isn't available in cache.
 
@@ -229,7 +230,7 @@ Before calculating hashes usually images are resized with specific algorithm(`La
 
 Each configuration saves results to different cache files to save users from invalid results.
 
-Some images broke hash functions and create hashes full of `0` or `255`, so these images are silently excluded(probably proper error reporting should be provided). 
+Some images broke hash functions and create hashes full of `0` or `255`, so these images are silently excluded from end results(but still are saved to cache). 
 
 You can test each algorithm with provided CLI tool, just put to folder `test.jpg` file and run inside this command `czkawka_cli tester -i`