All links resolve to the homepage

Hello,

My wife has a website at http://beckyshampay.com/blog. In short, whenever you click a link, it just resolves to the homepage, even though the href looks correct.

Originally, the blog was working correctly. My wife tried to change the domain and tried a few tutorials, but didn’t know enough about what she was doing. I read a support post about putting this at the top of the wp-config file:

define(‘WP_HOME’,’http://beckyshampay.com/blog’);
define(‘WP_SITEURL’,’http://beckyshampay.com/blog’);

This helped a little bit. It got the homepage to come up and load all the content, but any direct themselves back to the same homepage.

Thank you in advance for your help. My wife and I really love this blog, and it would mean the world to me if we could revive it.

Thanks,
Eric Smith