Mobile not working properly

I’m having a problem with the mobile version of the theme.
1.Menu is not showing up.
2. There’s a lot of space between the beginning of the page and the header image.
3.Logo is too big on mobile (phone)
4. Contact form is simply weird, on the live composer it looks good but not on the phone itself.
Site is:

Best Regards

Hello Santosjr13,

Can you please create separate topics for your questions in order to make it easier to help you?

Kind Regards, Roman.