There has been this issue for some, from time to time.
Which device and browser you are using.
If the app, that is suffering more than its usual glitches, so if using this, switch if you can to a laptop /PC, and try Chrome that seems to work well with eBay.
There's also a new update for the app, if you're using this, do you have it ... version 6.2.46.0.1
If payouts are Available, see if you can withdraw from there, worth a try!
@sukotto85