Hi riderx101,
I reviewed one of your saved store listings and, while I did not see the exact error you mentioned above when I attempted to schedule it, I did receive an error stating "You must have a feedback score of at least 10 to accept Best Offers." Based on the content of this error message, it sounds like you should be able to post successfully if you uncheck the "Accept Offers from Buyers" option.
If you continue to experience this problem, please feel free to contact our customer support team by completing the web form on the following page of our site:
http://www.auctiva.com/help/requesthelp.aspx-Mike