Server crashes after removing the Northstar mod.

[ClearlyMosz]

I've played with my friend on a multiplayer server I created, it works out really fine. But, after removing the mods, the server crashes.
It says northstar need to be installed.

Any kind soul, can help me? I do not wanna lose my world, especially we built a lot of structures.

[Thisand1]

just remove the damn dimensions from northstar. just go to level.dat, delete the northstar dimension entries, go to dimensions and delete the northstar folder, that's mostly the case cuz mc sees the dimensions (from northstar mod) and no mod to support the dimensions, and there you see the reason you had the crash, remember, just makea copy of the server before doing those types of modifications to it.