Unknown item in dashboard

My mobile phone has disappeared off my dashboard and been replaced with this:


Any idea how to get rid of this and add my phone back?

Click the three dots to open the config for that tile then in the left column select your phone.

Tried that but my phone doesn't appear in that list. But my phone is does appear on the Devices tab.

I just deleted the "unknown device", so I guess the bigger question is how do you add your phone back to the dashboard?

Do back to the Dashboard app (Hubitat Main Menu -> Apps). Then add the device corresponding to your phone back the Dashboard that you want to use it in. Then go to that Dashboard and add the specific tile for the device corresponding to your phone.