[B00MER]

{if $active_modules.Detailed_Product_Images ne "" && $images}{/if}{include file="product_thumbnail.tpl" productid=$product.productid image_x=$product.image_x image_y=$product.image_y product=$product.product}{if $active_modules.Detailed_Product_Images ne "" && $images}{/if} 

Use this code instead, I've added an additiona condition && $images.

This should do the trick.