Hi Melissa,
You have custom javascript code that alters the logo URL, and it applies a broken URL, example https://www.menamode.com/wp-content/uploads/2019/03/Webp.net-resizeimage-1.png
jQuery(document).ready(function($){
var width = $(window).width();
var logo_src = $(".x-brand img").attr("src");
if(width < 980) {
$(".x-brand img").attr("src", "https://www.menamode.com/wp-content/uploads/2019/03/Webp.net-resizeimage-1.png");
}
else {
$(".x-brand img").attr("src", logo_src);
}
});
Please change it to a valid image URL.
About the scrolling, it’s greatly affected with the current layout. It appears you have stacked navigation (top logo and bottom navigation) and you’re only forcing it as inline for mobile. Since the logo isn’t part of fixed navigation and only made the logo bar fixed through custom CSS then I’m afraid it will not appear as fluid upon scroll. But what you’re trying to do is applicable for Pro custom header. In X theme, fixed navigation is disabled for mobile view for many reasons and you have enabled it back with custom CSS with additional CSS for logo which was never part of it. I recommend trying Pro for this purpose
Thanks!