Alright thanks man got the problem fixed.
Just unscubscribed from all my addons and subscribed again

You have something else going on. This mod only replaces the textures. Sounds like you should run "Verify Integrity of the game cache" -

From the Library section, right-click on the game and select Properties from the menu.
Select the Local files tab and click the Verify integrity of game cache... button.
Steam will verify the game's files - this process may take several minutes.

So I'm not sure if it's this mod that's the problem or something else because I try to start a game (and even unsubscribing from this) my game just closes without any warning or error.

No one, absolutely no one goes this in-depth with the game.
I am forever grateful for this, thank you