Hiya!
Since I added more lock-items to my common config, the client's been crashing every time I try to join my locally hosted server.
Here's my crash report:
https://pastebin.com/0QU6fdD3
Here's my config file(its the same on both client and server):
https://pastebin.com/bwSghRgi
Here's the latest log from my client, since the server really alerts of no problems:
latest.log

What could I be doing wrong? Locking items has worked before. Everything added after "undergarden:cloggrum..." is new, so to say.
I'm sure the issue is with Justleveling's config, since re-generating it removes this issue.
Any help is appreciated!

Same, and worst of all, after deleting the config, the world, and the mod, and then re-upload just the mod without touching the config at all and restarting a new world, the issue keeps appearing, no matter what. Basically I cannot use this mod anymore on my server, for now and forever.

I have the same issue