Another Sidebar below Content (after new wordpress update)

The sidebar on most category pages is pushed below content. Example: http://247invest4wealth.com/category/nasdaq-2/ and here is an example of a category page that is fine http://247invest4wealth.com/category/government/. I have tried resizing the image in the sidebar, moving widget out of sidebar, clearing cache in my wp-content, checked as many div tags as I could in php and html files, therefore, I need some personalized attention as the other forum posts are not helping me.

I am using the plugin feedburner for the content. Also, this only started happening yesterday after I installed the new wordpress update 3.5. I am very new to working with wordpress and codes so please be as non-technical with your answer as possible so I can follow what suggestions you have. Thanks in advance!