Minecraft Forge: 39.0.79
Geolosys: Geolosys-1.18.1-7.0.3
JourneyMap (optional):
ImmersiveEngineering (optional): ImmersiveEngineering-1.18.1-7.1.0-145
(edit)-Oh the biomes you'll go: Oh The Biomes You'll Go-forge-1.18.1-1.3.5.10

What happens:
Get string or errors then server crashes. No crash log, just what is below in Logs

What should happen:
Server doesn't crash