Ndoor Camera stuck in Updating

I was adding 3rd 2K Pan & Tilt Security Indoor Camera. After adding it to the app, it started updating. However, it stuck in "camera is updating " on the app, and I can’t delete it. Pressing and holding the setup button, doesn’t help - camera is turning but there is no beep, I can’t connect to it when tried to add it again to the app.
How to recover the camera?