Cannot host LAN game after I had filepatching enabled

[FAILIX 32]

I have enabled filepatching on my test server and my client. After that, when I try to host a local LAN game, my game crashes instantly when I click OK to get to the mission selection screen. I get the message "cannot find outlw_magrepack/outlw_magrepack.cpp". I had used that script in the mission while I had filepatching enabled. It must have somehow been added to the init of the local server, if something like that exists. Can someone help me where to find the file that has been altered to change it? I already deactivated all mods and checked the game files via Steam.

[FAILIX 32]

Got this fixed by removing all mp mission files.