Twenty Twelve, Missing Author, Missing Updated errors

Keep in mind that I am a novice at site building in general and word press specifically.

Using a Child theme based on Twenty Twelve, I am getting something called:

Structured Data > hatom (markup: microformats.org) errors.

I don’t how to address this, or if it is really a problem to worry about.

this is the URL: mypestcontrolinfo.com

Any advice is greatly appreciated.

Thanks

Jim D

This is the site