Rimworld 1.1.2654 for mods I don't want to pay without.
So you pirated the game and discuss that on official forum? That is not smth that you should be proud off. If you do such things, I doubt you will support RimPy development also (that is not about donations, but testing, feedback, bug reports, etc. also). And if so, what is the reason to spend time on fixing things. Think about that.
For GOG users I would suggest to delete RimPy config folder:
%USERPROFILE%\AppData\LocalLow\RimPy Mod Manager
and retry.
The log file inside Logs folder. It is called rimpy.log. Debug.log is special log file for embedded browser and will not contain needed data.
If there is no helpful data, I guess that is broken pirated game itself.