u/Still-Section-9011

I installed and played game Gotham Knights, i installed online-fix so I can play co op with my friend, i copied and pasted form online fix to folder where .exe is and now i cant even open the game.Also i should note that when I installed from online fix the whole game started installing but i only chose to instal online fix is that a problem.

I am not so experienced with pirating games in general so i am completely lost.I originally installed from fit girl