Catch-22 with wired doorbellg

Hoping for a fast resolution to this problem. installed the wired doorbell 2 years ago, set up app on 2 phones for my household, everthing's been great - until 2 days ago. On my phone (android) the doorbell disappeared, Ring says I have no devices. On other phone, doorbell working properly. I can't set up this device because it's registered to someone else. I can't do a shared user because of this Catch-22: -- one user has control but nothing to share -- other user has device to share but no control what if I just remove the device and install all over again?