Plugins using Wrong Page Type

I’ve been using the Point theme for a while now on my site (www.electricaspects.com) and its worked out perfectly for some time now. I recently started adding some more plugins and came across an issue with the page type that has been used. I have a feeling that its a theme issue and not a plugin issue as its happened to a few different plugins (buddypress & woocommerce) I edited the pages that were created for these plugins to use the page with no sidebar however the pages that are delivered all still have the sidebar.

Is there any way to manually update these pages to force them to use the no sidebar version of the page other than through the page edit function built into WordPress?