Cannot stop mineOS server

I created a minecraft server, for the purposes of this post I’ll call it ‘seedSMP’, it works just fine with all the plugins, but when I go to stop the server, it says
" ‘seedSMP’ stop failed
true" and continues running. I read this post Can't stop server but I would like to stop it from the web UI. Is there any way I can i.e. edit the stop commands to save the server and data then kill it?