Yoast SEO is known to cause issue with Lay Theme:
https://laytheme.com/troubleshooting.html#gridder-does-not-show-up
Some users have found success with Lay Theme version 3.8.5 and Yoast.
If you would like a previous version of Lay Theme to test this with you can always send an email to lostfiles@laytheme.com with reference to this thread and your License key.
The necessary download links with be made for you 🌝
Best wishes Richard