amazon plug-in for shopperpress

I need a shopperpress/amazon plug-in EXPERT to fix the amazon price update tool and to fix error when importing amazon [login to view URL] amazon price updater stopped updating after 20 items...or...when I clicked (click here to debug), to view which items were no longer available...the update process stopped and would not restart. Plus...I get error (attached txt. file) when importing amazon items. The amazon api is all updated to latest revision and is up to date, but has not worked correctly since updating.