[Plugin: PostTabs] Tabs Plugins Not Working

Hi all!

I hope someone can help me with this… I had installed on my website the plugin “Post Tabs” and it worked perfectly fine. But, right now, you can see the tabs but with all the content of the page instead of just the content of each tab. Ex: http://devotedtovampirediaries.com/dtvd-guides/episode-guide/

Since I wanted to add more stuff on the sidebar I tried to add a plugin to have tabs on the sidebar, which where: fun with sidebar tabs that didn’t work, so I used tabbed widgets, which worked fine at first, but a couple of days after also all the content appeared on the sidebar instead of just the first tab. I don’t have installed that plugin, right now, in case it was what was messing up with post tabs…But i’m still having the same problem with post tabs. And from what i see, it’ll happen with any plugin for tabs.

Does anyone have any idea of where the problem could be?

That you a lot in advance!