Job: need help setting my nfo vps gmod server working

need help setting my nfo vps gmod server working

[ FAIL ] Starting gmodserver: Ownership issues found

chown -R gmodserver:gmodserver /home/gmodserver/serverfiles/

works it says but it says Operation not permitted

https://mtxserv.com/forums/threads/probleme-lancement-gmodserver-sous-vps-linux.11900/

other people had the same problem but i cant fix it....

https://gyazo.com/e024e010b79956f0f7f0894db9599786