Minecraft version: 1.12.2
Wizardry version: 4.2.7
Environment: Server

tryed updating other mdos and after restart i cant connect even if i undo the changes
join error log
https://pastebin.com/QkevuwLX

Have you removed any spell packs? You have somehow ended up with spells that are outside the ID range.

hey there its an issue that pops up if the server crashed before because of the arcane essentials addon, ht ebug that caused the inital crashes is know

I'm not sure I understand, sorry. Do you mean you've removed arcane essentials because there was a bug with it?

One specific spell from arcane essentials causes the server to crash when used, and after i started the server again wehn i removed the mod that has the buggy spell in it that error pops up

On second look something has also gone very wrong with packets, and there's an error from /dank/null going on there, not sure if either of those is anything to do with it.

All I can suggest is to move your existing server world save elsewhere and try it with a fresh one. Let me know if that fixes the problem or not, it'll help me figure out the cause of the issue.

i got a workaround be temporarily deinstall your mod and all its addons load the save and then i can reinstall your mod, the only thing is that its deletes any progress made in the save itself

Fixed in 4.2.11.