Starting with a log file is a good place to start
It is completely unclear how to attach a file here.
I tried to copy the log file, but apparently it was larger than what is allowed in the message (there are 564 lines)
Starting with a log file is a good place to start
last lines from LOG file:
2024-07-24T21:27:17 47.681 INF Started thread WaterSimulationApplyChanges
2024-07-24T21:27:23 53.196 INF Started thread GenerateChunks
2024-07-24T21:27:24 54.352 INF Calculating world hashes took 1138 ms (world size 416 MiB)
2024-07-24T21:27:24 54.354 INF Initial ENABLE_FILE_BACKED_ARRAYS == False
2024-07-24T21:27:24 54.500 INF Loading dtm raw file took 1301ms
2024-07-24T21:27:24 54.537 INF Biomes image size w= 1280, h = 1280
2024-07-24T21:27:26 56.763 INF Loading and creating biomes took 2262ms
2024-07-24T21:27:31 61.134 INF Loading and creating shader control textures took 4370ms
2024-07-24T21:27:32 62.417 INF Loading and parsing of generator took 1282ms
2024-07-24T21:27:32 62.488 INF Computed 2026 chunk groups containing a total of 51610 chunks. Largest group contains 394 chunks.
Invalid region file name: C:\Users\dmlam\AppData\Roaming\7DaysToDie\Saves\Vigavio County\Supergame2\Region\error_backup_30_-27.comp.bak
Invalid region file name: C:\Users\dmlam\AppData\Roaming\7DaysToDie\Saves\Vigavio County\Supergame2\Region\error_backup_30_-27.uncomp.bak
Exception: Incorrect region file header! C:\Users\dmlam\AppData\Roaming\7DaysToDie\Saves\Vigavio County\Supergame2\Region/r.0.-1.7rg
at RegionFileSectorBased.Get (System.String dir, System.Int32 rX, System.Int32 rZ, System.String ext) [0x00061] in <f51c10d082a84a18a1ca8ac6401604b4>:0
at RegionFileAccessSectorBased.OpenRegionFile (System.String _dir, System.Int32 _regionX, System.Int32 _regionZ, System.String _ext) [0x00000] in <f51c10d082a84a18a1ca8ac6401604b4>:0
at RegionFileAccessMultipleChunks.GetRFC (System.Int32 _regionX, System.Int32 _regionZ, System.String _dir, System.String _ext) [0x00067] in <f51c10d082a84a18a1ca8ac6401604b4>:0
at RegionFileAccessMultipleChunks.ReadDirectory (System.String _dir, System.Action`3[T1,T2,T3] _chunkAndTimeStampHandler, System.Int32 chunksPerRegionPerDimension) [0x000a5] in <f51c10d082a84a18a1ca8ac6401604b4>:0
at RegionFileAccessSectorBased.ReadDirectory (System.String _dir, System.Action`3[T1,T2,T3] _chunkAndTimeStampHandler) [0x00000] in <f51c10d082a84a18a1ca8ac6401604b4>:0
at RegionFileManager..ctor (System.String _loadDirectory, System.String _saveDirectory, System.Int32 _maxChunksInCache, System.Boolean _bSaveOnChunkDrop) [0x001e3] in <f51c10d082a84a18a1ca8ac6401604b4>:0
at ChunkProviderGenerateWorldFromRaw+<Init>d__17.MoveNext () [0x0096c] in <f51c10d082a84a18a1ca8ac6401604b4>:0
at UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) [0x00026] in <dfbdd4656e0844829a5285bde9c1a365>:0