Can't launch any version of aristois

[Omyl]

Here is my error report:

The game crashed whilst initializing game
Error: net.minecraft.class_151: Non [a-z0-9/._-] character in path of location: lang:af_ZA.lang
Exit-Code: -1

Here the crash report: https://pastebin.com/raw/M4sVpeRQ
Logs: https://pastebin.com/raw/dic4Xf8F

I am on Windows 11 de, 64bit amd

[Dyiing]

Reinstall completely.

https://discuss.aristois.net/topic/1140/how-to-fully-reinstall-delete-aristois