Gallery Error

Below error is received when looking at gallery. Pictures do show up fin ehowever this is on the left side of them. I am using the sunshine modern theme. I tried it on default with same results.

Notice: Undefined variable: available_categories in /hermes/bosnacweb01/bosnacweb01au/b2921/ipg.farcom/farcom/fcw/wp-content/plugins/sunshine-photo-cart/sunshine-template-functions.php on line 897

The page I need help with: [log in to see the link]