Having problems with Offer up.Mine not working anymore.

Level 1
Iv had Offer up for awhile.Was doing good.Now. I can't put item sold,delete item,I don't receive my messages anymore when someone interested in an item.My pic disappear,my email,my #.EVERYTHING I do says error.I have to much stuff to repost.Have no clue what to do or even make a new account.I'm frustrated 😠 Can anyone HELP PLEASE!!!