Just as an FYI, if you happen to notice your items on the new eBay express website, but noting that 'item no longer available' : note that eBay is aware of this issue and working to correct it.
Some users aren't seeing their items appear, where others are seeing them appear with the above error message. (some are posting correctly as well.)
Nothing to worry about if you see the message above, its just a kink they are working to correct at this time.