I've been having this issue about a week, i haven't played modded celeste in multiple months. I updated my everest to the latest version, but im still getting these errors when updating.
Currently i just skip the updates so I can play the currently installed mods i have, but some mods are not accessible until I resolve, this here is my log.txt if anyone knows what I can try please let me know, thank you for your time and dedication to this matter.