I'm having serious trouble with Pufferfish Skills and cant seem to figure out the issue at all. "Invalid configuration, check game logs"

I've tried fixing this issue myself plenty of times, but I've finally decided to swallow my pride and ask for help. I keep getting the "Invalid configuration, check game logs" error. However, when I look at my modrinth to try and even look at the logs, it stays in a infinitel loading loop so i cant even see what the logs say. I've tried a whole bunch of other standard solutions and can't seem to find any help for this at all.

IDK if I can post my log file here, or DM it to someone, or what, but I'm at a serious loss here.