Missing Logo in Chrome and unable to use menu on mobile.

This is how my quick CSS looks like:

.avia-section.av-minimum-height .container {
opacity: 1;
}
.home .avia-testimonial-image img {
display: none;
}
.home .avia-testimonial-image {
width: 80px;
height: 80px;
background-repeat: no-repeat;
background-size: 100%;
background-position: center;
border-radius: 100%;
display: flex;
}
#header_main{
background:#ab9a7f!important;
}

@media only screen and (max-width: 479px) {
.responsive #top #wrap_all .av-mini-font-size-45 {
font-size: 30px !important;
}
.home .avia-testimonial-image {
width: 180px;
height: 180px;
margin: 0 auto 20px;
}

—
Problem 1: Can’t see logo i Chrome?
Problem 2: Can’t open menu or click any butoms on mobile-version?
I deleted a code earlier today to make logo visible again after hiding – but maybe I did it wrong?

Best regards
Maria