Made sure that if the commmand is a group, it doesn't try to access the command signature

cogs/help.py

@@ -381,7 +381,10 @@ class HelpPaginator(Pages):
             entries = [cmd for cmd in entries if (await _can_run(cmd, ctx)) and not cmd.hidden]
 
         self = cls(ctx, entries)
+        if not isinstance(command, discord.ext.commands.Group):
             self.title = f"{command.qualified_name} `{command.signature}`"
+        else:
+            self.title = command.name
 
         if command.description:
             self.description = f'{command.description}\n\n{command.help}'