Sorry I had to move your reply to a new topic. Do you mind sharing temp admin access to your site so we can take a look? You can post the details here using the private reply option below. Also, if you could list down the steps to recreate the issue, that would be great!
It looks like the first problem is caused by an unclosed anchor tag on your Simple Edits. Simply head over to Genesis > Simple Edits then under the Footer Output right where you have your Credits.
The problem with the module headings is that your theme heading styles are declared important. So it overrode our own styling. It makes sense for this to happen on other sites as well if you’re using the same theme. Try adding the CSS snippet below and see if it works.