If your Minecraft server does not start, please check the server logs, for example at /logs/console/minecraft-console. log. <br />
If you find an error there, try to understand and fix it.  If you can&#8217;t figure out the error, you can also create a problem-report and send it to the support. <br />
Alternatively, you can also try to change the Java version. <br />
Error: UnsupportedClassVersionError<br />
Error: LinkageError occurred while loading main class net. minecraft. server. Main java. lang. UnsupportedClassVersionError: net/minecraft/server/Main has been compiled by a more recent version of the Java Runtime (class file version 60. 0), this version of the Java Runtime only recognizes class file versions up to 55. 0<br />
The correct Java version was not selected.  Change the Java version to /usr/lib/jdk-16. 0. 1/bin/java. <br />
Error: InvocationTargetException<br />
A problem occurred running the Server launcher. java. lang. reflect. InvocationTargetException at java. base/jdk. internal. reflect. NativeMethodAccessorImpl. invoke0(Native Method) […]<br />
Wahrscheinlich verwendest Du eine etwas ältere Version von Minecraft.  In diesem Fall benötigst Du auch eine etwas ältere Java-Version.  Ändere die Java-Version auf /usr/lib/jre1. 8. 0_241/bin/java