Warning: Division by Zero

Pagination is broken. I first tried using my template and the page wouldn’t load, so I switched to the default plugin template where I saw this error:

Warning: Division by zero in /home5/grantgoo/public_html/lisa/test2/wp-content/plugins/sunshine-photo-cart/sunshine-template-functions.php on line 742

which was affecting the pagination. The pagination should’n’t even have been triggered yet as there were only 5 images in the gallery. The page won’t stop loading, which makes sense since it keeps creating items for the pagination.

I am not using clients registration if that helps.