[Plugin: WP e-Commerce] Trying to set up WP-Ecommerce. Cannot view products?

So via the dashboard everything works wonderfully. If I go to view the product I’ve just created I get this error:

Warning: include(/home/dmbcabl1/public_html/onsiteaudiovisual.com/wp-content/themes/luxuos1.6.4//home/dmbcabl1/public_html/onsiteaudiovisual.com/wp-content/themes/luxuos1.6.4/single.php.php) [function.include]: failed to open stream: No such file or directory in /home/dmbcabl1/public_html/onsiteaudiovisual.com/wp-content/themes/luxuos1.6.4/single.php on line 17

Warning: include() [function.include]: Failed opening '/home/dmbcabl1/public_html/onsiteaudiovisual.com/wp-content/themes/luxuos1.6.4//home/dmbcabl1/public_html/onsiteaudiovisual.com/wp-content/themes/luxuos1.6.4/single.php.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/dmbcabl1/public_html/onsiteaudiovisual.com/wp-content/themes/luxuos1.6.4/single.php on line 17

Any ideas as to what has gone awry?

Thanks

http://wordpress.org/extend/plugins/wp-e-commerce/