I downloaded this app yesterday and now every time I load up the game, through steam using both the multiplayer and single player button, it causes it to open the default multiplayer game.
EDIT
Issue resolved using different launcher
Has there ever been a case when single player just stopped loading after downloading this mod? Because I recently downloaded this mod and now when I open the game, whether it is in multiplayer or single player it just opens the multiplayer.
EDIT FIXED GAME USING DIFFERENT LAUNCHER