Strange problem with the website – HELP

It looks like you are changing pages, if that’s the case, then your theme might be pulling different sidebars or special templates that have different sidebars on them. I would look at all your pages, get a list of the templates you are using for them, and then check those template files against the widgets in your list of sidebars in Appearence->Widgets to see which are actually being called. If you find out that different sidebars are being called on different pages, then you can alter your templates as you see fit.

Post the results of your search here. Include the theme name, URL to website, and which plugins you are using if you need further support.