The sticky menu for the phone doesn't work

The sticky menu for the phone doesn't work for me
the logo also for the mobile version is very smaller

I can't access your site now, you can try with this custom CSS:

@media (max-width: 575.98px){
.t4-header.t4-sticky {position: fixed !important;width: 100%;}
div#t4-hero {top: 80px;}
}

it's almost okay, just can't enlarge the logo in the phone view

arturro I edited the header block a bit by changing the number of grid for the logo from 'col-1' to 'col-5'

Kindly check.