PHP message: PHP Fatal error: Uncaught TypeError: strlen(): Argument #1 ($string) must be of type string, array given in /home/user_11570/app_11570/wp-includes/formatting.php:3551
Thank you for the feedback. A couple of requests for tracking this bug.
1) Please let us know the exact steps to reproduce the issue on your site
2) Please fill the private details fields after a full site backup. I would like to access the admin area of your statging site for further checking. Refer to the following links for more details about our private information sharing policies.
Thank you for the details. I can reproduce the issue on your staging site. Just to make sure, so we have to do all the debugging and troubleshooting on your staging site? Normally we debug using the Duplicator copy of the site. Hope you have a backup of your staging site.
We have released an errata for this bug. Please try the workaround suggested in the following article after a full site backup{mandatory} and make sure you are getting the expected results or not. It is expected to be fixed in the future version of WPForms.