Issue with header section. Red X showing up

I’m having an issue with a website I am working on. It has the header image the customer would like in there, but in the upper left corner a little red x appears with a link back to the site itself. The website is http://homeandselfprotectionproducts.com

The little red x shows up in Internet Explorer, but does not show in my Firefox. I looked through all the settings in the WordPress settings and didn’t really see anything that would be making this happen. I also looked in the theme coding (Suffusion Theme) at the header.php file, but didn’t see anything that might be causing this to happen. Any input is appreciated! Thanks!