WP eCommerce Error

I am getting a warning on a clients site:

It appears that your WP eCommerce database tables are in need of repair. This is very important for both security and performance. Repair your tables now.
Note: If you encounter errors upon repairing your tables, simply refresh the page.

When I try to repair I receive this error:

wp_wpsc_cart_item_meta: Table ‘shraders_wrdp1.wp_wpsc_cart_item_meta’ doesn’t exist
wp_wpsc_purchase_meta: Table ‘shraders_wrdp1.wp_wpsc_purchase_meta’ doesn’t exist
wp_wpsc_visitors: Table ‘shraders_wrdp1.wp_wpsc_visitors’ doesn’t exist
wp_wpsc_visitor_meta: Table ‘shraders_wrdp1.wp_wpsc_visitor_meta’ doesn’t exist

website: shardersgoods.com

Thank you for your help!