Hello, my server worked perfectly finde on vanilla 1.14.4. Then I messed around with the settings: I chose Forge 1.14.4 as a software and installed the "dynamic lights" mod. Now, my server crashes everytime when its trying to start. When I try to switch back to vanilla, it says i have to reinstall everything and that all data will be lost.
The Log gives me this error:
[Blocked Image: https://i.imgur.com/5GdTxFm.jpg]
Does anyone know how to solve this issue without losing my world and my inventory?