Skip to main content
This error occurs when the server can’t access the session file, preventing startup.
Error: net.Minecraft.server.WorldConlictException: Failed to check session lock, aborting.

​
Fix

  1. Stop your server
  2. Open the world folder in the file manager
  3. Delete the session.lock file
  4. Start your server
The session file will regenerate automatically. Need help? Ask in our Discord or contact support.