Hi,
We understand that when you press the SEO Data button it outputs that statement. We would like some more information.
1. Can you confirm you are using WordPress 5.5.1? You can check by clicking on the W in the top left and selecting About. If you need to update, please check with your host provider.?Please know that if you are using an older version of WordPress Core you may experience unexpected behavior with Yoast.?This guide explains more:?https://yoast.com/why-we-dont-support-old-wordpress-versions/.
2. Are all your non-Yoast plugins and themes also updated?
3. We had another recent release. Can you confirm you are using the most recent Yoast SEO, v15.1.1? If you update, does the issue resolve?
4. If you check for JavaScript errors do any appear on that page in the backend? Can you describe them or take a screenshot? If you are not sure how to look for JavaScript errors please use this guide https://yoast.com/help/how-to-find-javascript-errors-with-your-browsers-console/.
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