Problem with contact form and Invisible reCaptcha

My contact form stopped working correctly through recaptcha and the hash form was added to the url page.
I turned off the reCaptcha on the production https://masterofcode.com/ and now everything works correctly here but without the recaptcha and reproduced the situation on the stage https://mocnewstage.mocstage.com/ here the forms work incorrectly, there is no message after sending the form.

I use contact form 7 plugin for forms and Invisible reCaptcha for WordPress.
Wordpress version 5.8