There seems to be a conflict with the plugin GravityView or Yoast SEO and MB Custom Post Type.
I am not using MB CPT in the frontend edit form (Gravityview), but form submissions fail with MB CPT enabled and Yoast enabled. I am sending you the staging admin login via the contact form, and appreciate any tips you can provide,
I answered you via email. Probably you haven't checked. I'll post it here so others can see:
The problem is the Yoast SEO plugin, not Gravity or MB Custom Post Type.
I see you use MB Content Type to create a post type Profile, and connect this post type to GEO WP and Gravity. When you edit an entry on the front end, Yoast SEO plugin tries to count links for the post (a profile). This action has bad performance and can't finish.