Hi shaybay1428,
The error message you mentioned indicates that eBay rejected your posting attempt(s) and returned an error that was not recognized by our system. If you contact our customer support team using the appropriate link on our help page, http://www.auctiva.com/free-auction-software-help/help.aspx , we'll be able to look up the exact error message that eBay returned.
NOTE: Our customer support site is down for the moment while we work out some technical issues, but we're hoping to have it back up within an hour or so.
-Mike