diff --git a/cogs/utils/checks.py b/cogs/utils/checks.py
index 69f5c0a..90339b8 100644
--- a/cogs/utils/checks.py
+++ b/cogs/utils/checks.py
@@ -84,7 +84,7 @@ def custom_perms(**perms):
         try:
             required_perm_value = server_settings['permissions'][ctx.command.qualified_name]
             required_perm = discord.Permissions(required_perm_value)
-        except (TypeError, IndexError):
+        except (TypeError, IndexError, ValueError):
             pass
 
         # Now just check if the person running the command has these permissions
diff --git a/cogs/utils/config.py b/cogs/utils/config.py
index 4978dc4..1c08de5 100644
--- a/cogs/utils/config.py
+++ b/cogs/utils/config.py
@@ -121,7 +121,7 @@ def command_prefix(bot, message):
     try:
         prefix = cache['server_settings'].values[message.guild.id]['prefix']
         return prefix or default_prefix
-    except (KeyError, TypeError, IndexError, AttributeError):
+    except (KeyError, TypeError, IndexError, AttributeError, ValueError):
         return default_prefix