Here’s the command output, looks like everything is 1000/1000 which matches the “mc” server/group owner in the MineOS interface.
root@hexparrot-mineos1:/# ls -n /var/games/minecraft/servers/HP_Test
total 33056
-rwxrwx— 1 1000 1000 0 Feb 11 19:39 cron.config
-rwxrwx— 1 1000 1000 9 Feb 11 19:40 eula.txt
-rw-rw---- 1 1000 1000 33835116 Feb 10 20:08 minecraft_server.1.13.2.jar
-rwxrwx— 1 1000 1000 108 Feb 11 19:40 server.config
-rwxrwx— 1 1000 1000 208 Feb 11 19:39 server.properties