How can I change the alert after form submit?
At the moment we have alert when scroll site, is green report in the bottom of the page.
Better solution is report directly under the form. Where I can fix it?
If you are trying to ask anything else then please provide some relevant screenshots of the specific area with the URL of the page to check it myself and help you out accordingly.
And it’s working fine as it should in Mozilla Firefox as well as you disabled the sticky notifications of the theme that come at the bottom of the page and this is how the default alert of the contact form is displayed.