I recently bought XStore and installed on a staging site, I found that in the Header Builder, after I change the header background to white, it shows black in mobile view, also I turned the Built-in Email Builder on and click GO TO EMAIL BUILDER, I got the following error
Fatal error: Uncaught Error: uasort(): Argument #1 ($array) must be of type array, null given
in /home/776506.cloudwaysapps.com/rbzhgjxbxs/public_html/wp-content/plugins/yith-woocommerce-order-tracking-premium/includes/class.carriers.php on line 98