I would need to take a closer look at your site to troubleshoot the issue further. So I would need to request temporary access (WP-Admin and FTP), preferably to a test site where the problem has been replicated.
Your next answer will be private, which means only you and I have access to it.
IMPORTANT: Please take a complete backup of the site to avoid data loss.
✙ I would additionally need your permission to make a copy of the site with plugins like Duplicator and deploy it in my local machine to test the issue
Sorry for the delayed response here due to the weekends and thank you for the details.
I see you have installed "WPForms Multilingual" plugin fine however I dont see WPForms plugin installed on the site. Please note WPForms Multilingual is used only to translate the forms in the WPForms plugin.
I see your site has Formidable form installed instead. Are you trying to translate those forms? If yes, please review our document on how to translate Formidable forms with WPML linked next ( please let me know if it is otherwise ) and see if it helps:
