Plugin conflict with Toast SEO

There is a conflict between this plugin and Yoast SEO. When there is a Gravity Form styled with this plugin and other other elements on the same webpage, a Server Error occurs when trying to save a change made on the page.
After disabling all the plugins on my site and moving to the default theme and then reactivating the plugins one by one I could positively identify the styles-and-layouts as the cause of the conflict with Yoast SEO.

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