Mobile Menu not showing on ipad

Hi

I have updated to the latest version and I am no longer seeing the drop down menu on the ipad.

I have pasted all my custom CSS below just in case something is blocking it although I don’t think it should be:

@media only screen and (max-width: 801px) { .flex_column.av_one_fifth, .flex_column.av_one_fifth, .flex_column.av_one_fourth, .flex_column.av_one_third, .flex_column.av_two_fifth, .flex_column.av_one_half, .flex_column.av_three_fifth, .flex_column.av_two_third, .flex_column.av_three_fourth, .flex_column.av_four_fifth, .flex_column.av_one_sixth, .flex_column.av_one_seventh, .flex_column.av_one_eighth, .flex_column.av_one_nineth, .flex_column.av_one_tenth{
width: 100%;
margin-left: 0px;
}
}

.page-id-2372 .av_three_fourth { width: 78.5%; }

.responsive .logo img { height: 74px; }

.related_posts { display: none; }

.tribe-events-list-widget ol { margin-left: 0px }

.pricing-table li{
border: 0!important
}

.avia-promocontent { padding-right: 25px; }

#top .iconbox_top { padding-bottom: 35px; }

.iconbox_top .iconbox_content { box-shadow: none; border: 1px solid #f1f1f1; }

.logo img{
position: relative;
top: 10px;
}

.social_header .phone-info {
color: #014073;
font-size: 1.5em;
}

.main_menu ul:first-child>li>a {
font-size: 16px;
}

#top .main_menu .menu li ul a{
line-height:23px;
padding:8px 15px;
font-size: 14px;
min-height: 23px;
}

.title_container .main-title {
font-size: 18px;
position: relative;
min-height: 36px;
font-weight: 600;
}

#header_main .container, .main_menu ul:first-child > li > a {
height: 120px !important;
line-height: 120px !important;
}

h2.post-title {
color: #014073;
}

#top .template-blog h1.post-title, #top .template-blog h1.post-title a {
color: #014073;
}

#wp-calendar {
width: 99%
}

#footer .widgettitle {
color: #ffffff;
font-size: 20px;
}

@media only screen and (max-width: 767px) {
.responsive #header .social_bookmarks {
margin-bottom: 10px;
}
}

.news-excerpt p {
text-align: justify;
}

h2{
text-transform: none !important;
font-size: 24px;
letter-spacing:0px !important;
}

.widgettitle {
text-transform:capitalize;
letter-spacing:0px !important;
font-size: 16px;
}

.main_menu ul:first-child > li.current-menu-item > a, .main_menu ul:first-child > li.current_page_item > a {font-weight: 800;}
.main_color .sidebar .current_page_item>a {color:#000000; font-weight:bold;}
.current_page_item>a {font-weight:400;}

.sidebar li a {
color: #4C4646 !important;
}

#top .widgettitle label {
font-size: 16px!important;
}

@media screen and (max-width: 767px) {
#top .social_bookmarks { display: none; }
.header_color .container_wrap_meta { padding-top: 10px; } }

@media only screen and (max-width: 1279px) and (min-width: 769px) {
.responsive .main_menu ul:first-child > li > a {
padding: 0 6px;
font-size: 13px;
}
}

@media only screen and (max-width: 1365px) and (min-width: 1280px) {
.responsive .main_menu ul:first-child > li > a {
padding: 0 10px;
font-size: 15.5px;
}
}

.avia-icon-list .iconlist_icon {
background-color: #014073 !important;
}

#top .main_color .avia-color-theme-color {
color: white;
font-weight:bold;
}

Here is a link to my website with the ipad view: http://tinyurl.com/p69chqp

Thanks,
Rob