Describe the bug
can't login in immersive librabry

i seen after i was able to login for first time if you erase the mod and install it in another version it doesn't allosw to login like imagine you"re able to login in 1.19.2 desinstall to install a newer or older version without loging out it doesn't allow to log in

Make sure to have the most recent version for 1.20.1.

yes but all the other i have are on 1.19.2 so i had to go from 1.20.1 and it did this

No, 1.19.2 is no longer supported. Try deleting the "immersiveLibraryToken" files in the Minecraft save dir.