maybe this is just my problem, but I do not know this, write who met this problem

try resubscribe. black pink square means missing textures.

it didn't help, everything got worse, now all models (from the mod) have this error (black-pink squares in the eyes).

this error is not critical, and I can play with it, so if you don’t know what caused this error or how to fix it, I can understand you and can just close the discussion.