@manutd2020 

What operating system are you using?

The version of Safari that lots of folks have with iOS 15.8.8 no longer works with eBay. Possibly other browsers as well. Chrome now requires at least iOS 18 to function, apparently. That sounds to me like older iOS systems are no longer being actively supported, but I am not an Apple expert.

If possible try another device with a newer operating system -- it does not necessarily have to be the latest and greatest, but it may need to be newer than iOS 15.