Sorry to hear of the problem you are having.
Please make sure you have configured the contact form settings correctly as shown in the attached screenshot.
Is the test email getting sent from it?
Could you please share me the page URL from your site where it is not working correctly so that i can troubleshoot it?
Are you getting the test email sent from contact form settings in the admin area?
Also please check whether the email gets sent from your site using the following plugin which will help us to troubleshoot the issue.
It’s English forum and most of the members including me here only understand English language so it would be better if you post on the forum in English.
If you don’t know English then you can translate your statements in English using the following Google translator and then add here the translated English text.
Our built-on contact form plugin have some issues to work correctly with some specific hosting configuration, so we added support for Contact Form 7 plugin, which is far more popular should work as expected.
Here is getting started guide for that plugin: