Updated debug command to print an error

cogs/owner.py

@@ -46,6 +46,7 @@ class Owner:
     @commands.check(checks.isOwner)
     async def debug(self, ctx):
         """Executes code"""
+        try:
             match_single = getter.findall(ctx.message.content)
             match_multi = multi.findall(ctx.message.content)
             if not match_multi:
@@ -58,6 +59,8 @@ class Owner:
                 def r(v):
                     self.bot.loop.create_task(self.bot.say("```\n{}```".format(v)))
                 exec(match_multi[0])
+        except Exception as error:
+            await bot.send_message(ctx.message.channel, fmt.format(type(error).__name__, error))
 
     @commands.command(pass_context=True)
     @commands.check(checks.isOwner)