It says that I can't renew the listing unless I add shipping times.
So I open the listing the add the shipping times.
But when I can't save the edits unless I renew.
When I click renew, it says "uh oh, something went wrong," so I have to discard the edits. Cannot renew.
@NothingSpectacular: There are a number of other threads about editing issues - you might want to keep an eye on them for updates.