Frosty is conflicting with your antivirus or EA Anti-Cheat (EAAC). Note: FIFA 20 does not have EAAC, but background processes from newer EA games can interfere. Fix:
FMM loads mods into your game's memory at runtime. This means your original game files remain untouched. If you don't like a mod, you simply disable it in the manager. No re-installing FIFA 20 required. frosty mod manager fifa 20 free
Look for FrostyModManager_v1.0.6.2.zip (or newer). Ensure the file size is roughly 4-5 MB. If the file claims to be an .exe installer that is 500KB, delete it immediately – that is a virus. Frosty is conflicting with your antivirus or EA