Badly Stuck at Uninstalling Zoom Admin

I was trying to create a VPN of my digital ocean server using zoomadmin.com but because of some limitations in zoom admin which i had found after installation.Now i want to uninstall zoom admin completely from my ubuntu 18.04 but

as you can see in terminal i had found multiple zoom base packages in the list. So i tried to uninstall it by executing follow command

sudo apt remove zoom

Commands throws back following error

E: Unable to locate package zoom

That's official link which i had followed.