Site/app not loading

Haven’t used the Hubitat app in almost a year. However, now that I go back to it I can still see my devices but it is no longer connecting to the hub. It looks like the site is loading but nothing happens. Any way to fix this? I tried buying the remote option but still nothing

Mind sharing which app? Are you talking about one of the Hubitat Mobile apps, if so what operating system, or accessing your hub's web interface?