When joining a server the log shows JER is stuck registering categories. This only happens sometimes I was able to join once and then it failed the rest of the times.

This is the modpack, this is the fabric 1.20.4 version as well. (exported as a modrinth pack then zipped)
mods.zip

I have the same problem. i cant load my server when i loaded JER. I am using fabric and the game version is 1.20.1.