Lay Theme is known to have some trouble with Yoast SEO:
Because it's a third-party plugin i do not have any control over it, But in the past user's have said that Lay Theme version 3.8.5 works for them, & this is something i can help with. If you would like to give version 3.8.5 a go, send me an email via: email@example.com with your license key & reference to this thread & i can create a download link for you.
(Note: Lay Theme version's before 4.0.0 do not have Woocommerce compatibility.)
Talk soon @shbln & best wishes