Check the server log

If you're experiencing issues with your server, it's always recommended to check the log files. Most of the time, the issue will be described with an error message. In this article, we'll show you how to find the server logs and how to read and share them.

Access your server logs

The server software will store the logs in files. With Aternos, you can easily access them through the separate server log page on our panel. 

Check your server log

Reading the logs

Reading a log is not easy, but learning it helps to identify problems with your server easier and faster. Log lines start with the time and the log level:

    Time                    Log level

[13:50:55] [Server thread/INFO]: Starting minecraft server version 1.12.8

To identify problems with your server you will most likely look for errors, which you can find in lines with the ERROR log level:

[10:56:03] [Server thread/ERROR]: Encountered an unexpected exception

Sometimes the surrounding lines of an error provide further information regarding the error, so reading them might help. If you don't understand the error message you can try to google it to see if other servers had similar issues.

Automatic suggestions When there are any suggestions available, you will see them at the top of the page. You get automatic suggestions for errors in your log and buttons on how to solve those errors.
Follow these suggestions to fix the problem.
Detected problems list showing that the mod "Origins" requires a different Minecraft version

Share the server log

If you still have problems starting your server, you can contact the support here. Please make sure to include as many details as possible and also include the link to your log on mclo.gs. mclo.gs is a website developed by Aternos for simple log sharing, reading and analysing. 
To share your log, go to the Aternos panel (https://aternos.org/log/) and click on the button "Share" in the top right. Then you get a field with the link to your log on mclo.gs. 

Share button being clicked and resulting URL being copied