status

root@ubuntu:~# systemctl status minecraft.service
● minecraft.service - Launches Minecraft Servers
   Loaded: loaded (/etc/systemd/system/minecraft.service; disabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Thu 2020-04-02 15:57:51 CDT; 3s ago
  Process: 15741 ExecStart=/usr/bin/screen -dmS  /usr/bin/java -server -DIReallyKnowWhatIAmDoingISwear -XX:ParallelGCThreads=4 -Xmx3G -Xms3G -jar bukkit-current.jar nogu

Apr 02 15:57:51 ubuntu screen[15741]: -T term       Use term as $TERM for windows, rather than "screen".
Apr 02 15:57:51 ubuntu screen[15741]: -U            Tell screen to use UTF-8 encoding.
Apr 02 15:57:51 ubuntu screen[15741]: -v            Print "Screen version 4.06.02 (GNU) 23-Oct-17".
Apr 02 15:57:51 ubuntu screen[15741]: -wipe [match] Do nothing, just clean up SockDir [on possible matches].
Apr 02 15:57:51 ubuntu screen[15741]: -x            Attach to a not detached screen. (Multi display mode).
Apr 02 15:57:51 ubuntu screen[15741]: -X            Execute <cmd> as a screen command in the specified session.
Apr 02 15:57:51 ubuntu screen[15741]: Error: Empty session-name?
Apr 02 15:57:51 ubuntu systemd[1]: minecraft.service: Control process exited, code=exited status=1
Apr 02 15:57:51 ubuntu systemd[1]: minecraft.service: Failed with result 'exit-code'.
Apr 02 15:57:51 ubuntu systemd[1]: Failed to start Launches Minecraft Servers.