I've stumbled over a Mod Limit fixer on Nexusmods:
https://www.nexusmods.com/witcher3/mods/3711?tab=description&BH=1

However, the problem I'm having now is that I am unable to run the game through GOG Galaxy. Running the game by double clicking the exe works without any issues though. The crash reason is an "EXCEPTION_ACCESS_VIOLATION (3221225477), Error writing location 0x00000000"