Minecraft server doesn't start
Startup errors, Java exceptions and wrong memory settings explained.
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Structured articles with causes, diagnostics and step-by-step solutions
Startup errors, Java exceptions and wrong memory settings explained.
Diagnosing network problems and connection timeouts in different games.
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Answers to common questions about diagnosing and fixing errors
Most often the cause is incompatible mods or plugins. Check the core version and disable custom builds.
In the control panel open the "Files" or "Console" section. The latest startup and error logs are available there.
Check the status in the control panel and make sure the IP and port match what you entered in the game client.
Yes: use your backups or contact support to restore the last stable version.