Crash when launching world

[Jack-Winters-24]

Fabric 1.21.1 Loader 0.16.9
Scriptor v1.3.5

Game launches to main menu just fine, but crashes whenever attempting to load previous worlds or create new worlds
Crash log attached
crash-2024-12-04_11.27.44-client.txt

[GuiTaek]

I'm not the developer, but maybe I can help anyway! You neither used fabric api nor architectury according to what you have written. These mods are necessary to play the mod. However, I guess you installed these mods, because else you wouldn't get to the main menu, would you? Just to check the trivial things, do you have any other mods, modpacks, datapacks, resourcepacks installed? Because I couldn't reproduce the issue.

[ssblur]

Oh, I'm sorry, I was away from home when I got this issue and forgot to respond! It looks like your server's player manager wasn't initialized for some reason. It looks like you have MineLittlePony installed, which I have had a similar issue reported from in the past, so I'm presuming it's contributing, though I'm not sure. Either way, the upcoming version of Scriptor should fix this issue.

Thank you for reporting!