@jsmbizhack as you can see the problem is still there… There is some issue regarding anchors… something you have there is breaking the anchor navigation and removing the header.
Maybe some other plugin is doing it or maybe an issue with the theme itself… Try to disable plugin by plugin and see when the issue disappear…
Checking the loading of webpage I see the issue comes when ajaxget_refreshed_fragments, from woo, triggers and brake all your website…
I see here that this is a know issue… Maybe the element where it has to put is not there already.
Try to dequeue the wc-cart-fragments
script and see if the issue goes away. For doing that You just need to put this piece of code inside the function.php theme file:
add_action( 'wp_print_scripts', 'de_script', 100 );
function de_script() {
wp_dequeue_script( 'wc-cart-fragments' );
return true;
}
If that solves You have to check with the guys from the theme, or woo support, how to handle that script properly.