There have been similar reports from other member from the past few days, so you're not alone.
I have tagged 2 Community Managers to ask if this is a technical issue, when I get a reply, I'll come back to you.
In the meantime which device and browser are you using? If the app or mobile browser, then switch if you can to a PC / laptop and use Chrome or Firefox they work best with eBay, and try from there, it might help.
Or, this seems to be a sporadic tech issue, so migh be worth trying a little later on today.
