BeastNode Game Server Hosting

Checkout our new range of Cheap Game Server Hosting! Including Rust, Terraria and Valheim!

Starting at only $2.11/mo!


Don't worry our Minecraft Servers are here to stay!

Minecraft Hosting Game Servers


Failed To Check Session Lock

Failed to check session lock errors can occur randomly and usually begin with this line:
net.minecraft.server.WorldConlictException: Failed to check session lock, aborting

It will cause your server to crash. The fix for this is to simply navigate to your world folders and delete the session.lock files in them, then restart your server.

  • 43 Users Found This Useful
Was this answer helpful?

Related Articles

Duplicate Mods

If your modded setup is crashing and the console is showing an error that contains [SEVERE Found...

Server Crash / Port Bind Errors

In certain situations where your server is overloaded or simply just bugged due to plugins and/or...

Whitelist Enabled But Not Working

This is caused if the whitelist.json file format is broken. Whilst the other .json files will...

Failed to Adapt Server Configuration

If you are getting the "Failed to adapt server configuration" error in your console when starting...

Whitelist Disabled But Getting "You Are Not Whitelisted" On Join

If the whitelist is disabled in your servers server.properties file and has been restarted to...