Drop Down menu not working properly and Contact Form not appearing

[Kat]

Hi, I have two bug problems which are appearing when I use "lay theme" for my client and are appering perfectly with other default theme like "twenty seventeen", "twenty twenty".

1. So my drop down menu wasn't droping, searched for hours.
   I copied that code, which helped a bit -->
   nav.primary .sub-menu{
   display: none;
   position: absolute;
   left: 0;
   top: 30px;
   background-color: white;
   padding: 0px;
   border: 0px solid grey;
   }

nav.primary .sub-menu li{
display: block;
}

.menu-item:hover .sub-menu{
display: block;
}

and it started dropping, but both of the section appear under the first menu and I also can't control the font for the sub menus. I need it eather smaller/thinner/lighter.

2. The second problem is the Contact Form, I tried Ninja Forms, Views for Ninja Forms, Contact Form by WPForms, Contact Form 7 non worked.

Stopped all the plugins, nothing changed.
It fixes only when I change the Theme, which is not a real option here. No coding knowledge available.

What can you recommend me as a solution?

[Kat]

And the drop down menu dissappears imediatly before you can click anything.

[arminunruh]

hey can you send your /wp-admin/ login info to info@laytheme.com