I have been doing relists from saved listing page tonight and have gotten this message twice now.
Error An error has occurred during the processing of your request. Please try again or file a support case if this problem continues.
NORMALLY, After I hit for them to post and give ok there is list of what has actually listed.
Tonight getting above error.
PROBLEM...THE ITEMS ARE listing...so beware if you are listing....check and make sure they are really are not listing...as ebay will hit you with duplicate listing violations.
If anyone else is having problem pls. post, I will write support if continues.