Common error messages and what they mean
A quick reference for the errors we see most in tickets. Use Ctrl + F to find yours.
Connection errors (players)
| Error | Meaning | Fix |
|---|---|---|
Connection timed out: no further information | Your game can't reach the server | Server offline, wrong port, or your network blocks it - see I can't connect |
Connection refused | The address is reachable but nothing is listening on that port | Server is still starting or stopped - check the console |
Outdated client! Please use X | Your game is older than the server | Launch the version the server runs |
Outdated server! I'm still on X | Your game is newer than the server | Launch the server's version, or update the server |
Failed to verify username | Minecraft session expired | Restart your launcher and sign in again |
You are not whitelisted on this server | Whitelist is on | Run whitelist add YourName in the console |
Unknown host | The domain doesn't resolve | Check your DNS records - see Point your domain |
Server console errors
| Error | Meaning | Fix |
|---|---|---|
java.lang.OutOfMemoryError: Java heap space | Server used all its RAM | Reduce plugins/mods or upgrade |
FAILED TO BIND TO PORT! | Port conflict | Don't change server-port; restart the server |
Can't keep up! Is the server overloaded? | Server fell behind | See How to fix server lag |
UnsupportedClassVersionError | Java too old for this software | Pick a newer Java Docker Image on the Startup tab |
No space left on device | Disk full | Delete old backups, logs and unused worlds |
Error: Cannot find module (Node.js) | Dependency not installed | Make sure package.json is in the main folder |
ModuleNotFoundError (Python) | Package not installed | Add it to requirements.txt |
Panel and account messages
| Message | Meaning | Fix |
|---|---|---|
| Suspended | Unpaid invoice or policy issue | See My server is suspended |
| Installing for a long time | Install script still running | Wait 10 minutes, then open a ticket |
Authentication failed in your SFTP app | Wrong SFTP username or password | See Connect with SFTP |
| "Too many attempts" when resetting your password | Rate limit | Wait, then try again |
Still stuck? Open a ticket on Discord - run /ticket in any channel, pick a department, and include your Server ID or Invoice ID so we can jump straight in.