Stopped working plugin

[Slestor]

version: 8.0.0-PRE-RELEASE-4 Spigot username: Tukard Issue: When I start the server, then after a while he is not continuing to boot. http://prntscr.com/i8uj0l Link to settings file: I'm trying to create a new world, and I still have no settings Server version: paperspigot 1.12.2

I waited a few minutes, and there was a crash https://pastebin.com/9520sfQS