Hi @emuscolino ,
Thanks for reaching out!
This error message “Heads up! Something went wrong while saving the form. Please reload the page and try again. Please contact plugin support if this behavior persists.” usually happens when the AJAX script (which allows the form to save without refreshing the page) is not being allowed to load. This almost always stems from two possible reasons.
1) A file permissions issue. If you contact your host and ask them to reset file permissions, this should start working properly.
2) Another reason is the security policies that are enforced on the server. It is likely that your server has some Mod_security (firewall) rules that are blocking the save action of the admin-ajax request.
Your best bet to resolve this issue would be to reach out to your host to check these two points. They should be able to reset the file permission and check Firewall settings to unblock the admin-ajax request.
Hope that helps !