Smartthings Hub Not Setting Up

I had a smartthings Hub for a while and yesterday it stopped working… So I was dum and deleted the device and It deleted all the automations and devices. when I tried to set it back up… in smartthings home page I can’t see the hub
When I go in the device list it says unknown device when I try to change the name it won’t let me, then the icon disappears. On top of that it shows it fine in the classic app but not the new app…