Yoast Local Seo Not Allowing Pages To Be Edited

Within the past few days, Yoast Local SEO has been causing problems. When activated, we can no longer edit any pages. In fact, all we get is an empty content area in edit mode. When Local SEO is deactivated, we can edit pages but of course we get none of the functionality that the plugin is supposed to provide and the site menu structure loses its formatting. This problem extends across the entire site.

The page I need help with: [log in to see the link]