Hi.
In a page with Divi theme, I've created a post form. The problem is the message "This field is required" appears although the field is correctly fulfilled.
Although I can see the issue with the required fields on your website, I couldn't reproduce this on my test website. This suggests that something specific to your website is involved.
Do I have your permission to download a clone/snapshot of the website? This will help in investigating this on a different server.
A permanent fix for this will be included in the next Toolset Forms release and for now, you have two options for a quick fix:
1. You can check the option "Submit this form without reloading the page (use AJAX)" in the form's settings.
OR
2. You can download the "main.php" file from the patch available in the errata page and replace it with a file of the same name at:
/wp-content/plugins/cred-frontend-editor/application/controllers/
I wanted to let you know that the latest releases of Toolset plugins include a fix for this issue.
If the updates do not show up on your plugin installer page (click the registered link beneath the plugin name to go to the custom installer page) click the 'Check for Updates' button to update the list.