is there a bug in the Exposure theme or do I not have it coded correctly

Hi

I have the site all set up, however, when I click one of the top menus and then use the blue arrow in the top left hand corner of the browser, it doesn't take me back to the home page, it takes me to an empty page.

http://www.74.onl.checit.info/wordpress

Could someone please check it for me and let me know what is going wrong?

Also I have a drop down menu under "Monthly News" in the top menu bar, but if you happen to click on Monthly News instgead of choosing one of the menus in the drop down section (which is supposed to be a header only) it takes you to an empty page.

I would appreciate if someone would help me please. This is the first time I have used wordpress.

Hi!
Sorry for the inconvenience. Probably, this is caused by the work of your third-party plugins. Please, try to disable your plugins one by one to detect the problem. Also we can suggest you to turn off "Load Content Dynamically" on page Theme Settings --> Layout in your dashboard.