Don't have add field for SEO dynamic content

[altcodes]

Hello
I try to use CMS for SEO meta and tittle, but didn’t have the fonction +add field to load the dynamic content. Any idea ?

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Here is my site Read-Only: LINK
(how to share your site Read-Only link)

[Daria_Onofrei]

Hey @altcodes
Can you share please your read-only link?