My server crashes when generating a structure or entering an area — how do I fix it?
If your server crashes only when a specific structure generates or when players enter a certain area, the cause is almost always a single mod tied to that structure, biome, or mob — and the crash report will usually name it.
Why it happens
A crash pinned to one location or feature points to the content responsible for it. The crash report captures the mod, entity, or block at the exact point of failure, which makes this kind of crash easier to trace than a random one.
How to fix it
- Read the crash report — it names the mod or entity at the crash point.
- Update or remove that mod, and check its dependencies and config.
- If it's a corrupted chunk, delete that chunk (with a tool like MCA Selector) so it regenerates, or restore from a backup.
- Test by traveling back to the area to confirm the fix.
Tip: Because the crash is tied to a specific spot or feature, the crash report is unusually precise here — read the top of it before changing anything.
Frequently asked questions
Where do I find the crash report? In the Files tab under crash-reports/, or share the log via the Console's mclo.gs button and open a ticket.
What if only one chunk crashes the server? That chunk may be corrupted. Delete it with a tool like MCA Selector so it regenerates, or restore a backup of that area.