Re,
thank you for your rapid answer. I did the manipulation that you told me :
PHP Version: 7.4.33
WordPress Version: 5.5.12
Plugin Version: 15.11
Current Theme: Symtrax
Application Used: Our Official Application
But the issue persists, here is a link of a malfunctioning form : https://www.symtrax.com/de/webinars/das-webinar-um-9-leistungsstarke-ocr-dank-ki/