// SET THESE IN SERVERS //
In server.properties file, make these changes:
max-tick-time=-1 --> to make structures generate properly and not cause a crash.
enable-command-block=true --> to make structures generate properly.
difficulty=3 --> makes the difficulty Hard.
allow-flight=true --> to stop the server from kicking you for using modded features to fly or hover.
ADD -Dsun.io.serialization.extendedDebugInfo=true AND -Duser.language=en -Duser.country=US TO YOUR SERVER BATCH FILE TO STOP DYNAMIC TREES FROM CRASHING AND STOP FATALLY MISSING REGISTRY ENTRIES FROM SOME LETTER USING ı INSTEAD OF i.

If you can't place or break items on the hunting dimension as an operator, consider using permission mods or go to fxcontrol folder and delete breakevents.json and placeevents.json.