Hi teganonline,

Can you please send us your site URL first, so we can investigate your site and then get back to you with possible solution.

P.S. make sure you've disabled the Maintenance/Coming Soon mode

Hi there,

Go to Custom CSS and paste this CSS below: 

.nav > li > a:hover, .nav > li > a:focus {
    background-color: transparent !important;
}

It should fix your problem

I am sure it works, the problem may be that you have added it in the wrong way.

Can you please share your site credentials here, because we need to login to your site and see this issue live. Your information is safe (private) in this thread.

To include your credentials click Insert Credentials button in editor toolbar. (See how)

Hi there,

I just checked your site, the black background on menu was already removed. Please check it again.

You're welcome