Comments Plus when activated kills all blogs and widget displays on site

I have installed the Plugin COMMENTS PLUS and I love it. I'm using the Powermag theme. Its works fine, and looks great. However after its installed maybe like 30min later, ALL my blogs and widgets disppear completely from my site. Store too. The only thing I have left is the header and the footer with blank pages inbetween them. Once I deactivate the plugin everything comes back. Then I activate it again, and again, everything looks great. 20min later. All pages gone once again. Currently its deactivated so I can continute developing the site. However I hope you can help solve this issue as I love the plugin.

What should I do as I know its hard for you to trouble shoot issue when the plugin is off.

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