kwxpakfileloacl::loadzipFile:Unable to find \device\harddixkVolume1\Gog\Forsaken\\ForsakenEX.kpf

So that's it. Did all the usual things to fix, scan reinstall etc... Now whut?☺

Sounds like you tried modifying something in the kpf.

And not just modified but greatly increased its amount of data.

There is a limit to which 1 make a kpf file for this engine before you encounter said error.