Menu items have disappeared following theme update

Hi Rikard,

Thanks in advance for the help. To clarify, I had switched to the hamburger style menu only as a workaround in the meantime until we were able to solve the problem. What I want is for the desktop version to have a horizontal cross-page menu (no hamburger) and tablets and mobile to have a hamburger menu.

I added the following additional CSS to force the hamburger menu on desktop while we find a solution (when I remove this my menu entirely disappears):

@media only screen and (max-width: 3200px) {
nav.main_menu, #menu-item-search {
display: block !important;
}
.menu-item {
display: none;
}
.av-burger-menu-main.menu-item-avia-special {
display: block;
}
}