I installed WPTouch Pro and while one of my plugins is selected to be activated in the WPTouch settings, it is not working. I tried turning on each of my plugins and nothing. I have a child theme off of Canvas and I just want to use Relevanssi on my mobile visitors, as well as the desktop visits (which it's working on). Before I installed WPTouch Pro, everything worked on my mobile site, it just wasn't responsive. What could be the reasons that plugins just don't work at all on mobile, but are fine on desktop with WPTouch?