[Plugin WP e-Commerce 3.8.2] Fatal Error

I’ve just changed my site’s theme, only to have found the WP e-Commerce plugin does not work.

Theme: Folioway at ThemeForest.net
Site URL: https://www.aspireaviation.com/products/

Error Message:
“Fatal error: Call to a member function the_content() on a non-object in /home/content/05/6549605/html/wp-content/themes/folioway/page.php on line 12”

<Associated File at Fault:
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The error identified was italicized and bolded.

I tried to delete it but then no contents are displayed. Therefore it must be a modification, not deletion.

Can anyone help?

Thanks,
Daniel,
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