If you still have problems starting your server, you can open a ticket here. Follow these suggestions to fix the problem. You get automatic suggestions for errors in your log and buttons on how to solve those errors. When there are any suggestions available, you will see them at the top of the page.

If you don't understand the error message you can try to google it to see if other servers had similar issues. Sometimes the surrounding lines of an error provide further information regarding the error, so reading them might help. To identify problems with your server you will most likely look for errors, which you can find in lines with the ERROR log level: : Encountered an unexpected exception Time Log level : Starting minecraft server version 1.12.2 Log lines start with the time and the log level: Reading a log is not easy, but learning it helps to identify problems with your server easier and faster.

The best source to find this problem is the log file of your server, which you can access here: When this happens it's most of the times a fixable problem caused by the installed software and not a problem in the Aternos system. But sometimes that's not enough and the server refuses to start and just switches its status from starting to stopping after the Aternos system discovers the failed start. Starting your server on Aternos is usually just as easy as clicking the start button and let the Aternos system do the hard work of loading all the files and starting the server with the correct configuration.

Aternos server