Hi.
Your listings will show back up once they're reindexed. It's normal.
I found this from Auctiva_Mike on another thread:
"Welcome to Auctiva! Your current listings were actually not removed from eBay, but were being “re-indexed”. When you sign up for Auctiva and the scrolling gallery is appended to your active listings, eBay must "re-index" your items to appear in the appropriate search results pages which, according to their help page, can take up to 6 hours.
Additional information on this fairly common eBay issue is available on the following page of eBay’s help index:
http://pages.ebay.com/help/find/questions/wheres-my-item.html. If you have any further questions about this specific issue, I recommend you contact eBay’s customer support department.
Any additional questions or concerns? Please file a support request using the appropriate link on our help page:
http://www.auctiva.com/free-auction-software-help/help.aspx "