These are errors that you may come across while using the dynamic form tags and shortcodes provided by Contact Form 7 – Dynamic Text Extension in the form editor of Contact Form 7.
This error means a form tag that is using the specified shortcode with the specified key attribute is attempting to access potentially sensitive post metadata.
To resolve, you need to add the specified key to the Meta Key Allow List in the DTX settings or remove the form tag.
This error means a form tag that is using the specified shortcode with the specified key attribute is attempting to access potentially sensitive user data.
To resolve, you need to add the specified key to the User Data Key Allow List in the DTX settings or remove the form tag.
Contact Form 7 Documentation
Check out these pages for more information about the configuration errors and the validator from Contact Form 7.