Correct display issue of my site on Kindles.

My site [login to view URL] does not display correctly on kindle devices. I need this fixed. Attached is a screenshot showing the erroneous formatting. I need this fixed asap. You must have a kindle to see the display window and see the error in display. As you will see from the attached screenshot the newsletter submit button is over the input boxes for the name and email plus there are square characters in between the social icons. This all needs to be corrected.