@Mimi:

Hmm, a good question, strange that it works on all other pages, including this one:
http://pechepassion.ca/contact/
which gives you the body class of:
page page-id-36 page-template-default contact

Makes me wonder if there is anything special going on with that page, like any special plug-in or shortcode that might be interfering with this plug-in? Certainly the URL structure is different from most other page, like this category page:
http://pechepassion.ca/category/promotions/

If you find the issue, would you please let me know what it is, so I can try to resolve it within the plug-in, in case any others have a similar issue?

Thanks,
Atg