Describe the bug
Server crashes when world is loaded

Configuration
Mod version: 4.2.0
Forge version: 34.1.1
Minecraft version: 1.16.3
Are you playing on server?: Yes

To Reproduce
Steps to reproduce the behavior:
No clue, tried to restart server, got this error
Edit: after figuring some stuff out from the log, seems to need an AE2 system importing from a dim chest

Expected behavior
Able to see server load without crashing

Log