Forge version - 1.16.5 - 36.2.34 (also tested on 1.16.5 - 36.2.39)
majrusz-library - 1.16.4 - 2.0.1
majruszs-difficulty- 1.16.5 -1.1.0

This started happening recently after i changed my pc and imported my old private modpack on curseforge. The first time i join any map it works fine, but after that, it keeps showing me a message that says:

"Errors in currently selected datapacks prevented the world from loading. You can either try to load it with only the vanilla data pack ("safe mode"), or go back to the title screen and fix it manually"

Any of the worlds that present this problem have any datapack and this error fixes itself if i remove majruszs difficulty and the library. Trying to use "safe mode" doesn't do anything either, i just remain on the screen with the same message.

i don't have a crash log due to this not being a crash, but here goes the latest.log:

latest.log