add_action('wp_footer', function () { echo ''; }, 99);
Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, class Posts_Manager_Pro_Core_73 does not have a method "enqueue_front" in /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-includes/class-wp-hook.php:353 Stack trace: #0 /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-includes/class-wp-hook.php(377): WP_Hook->apply_filters() #1 /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-includes/plugin.php(523): WP_Hook->do_action() #2 /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-includes/script-loader.php(2340): do_action() #3 /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-includes/class-wp-hook.php(353): wp_enqueue_scripts() #4 /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-includes/class-wp-hook.php(377): WP_Hook->apply_filters() #5 /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-includes/plugin.php(523): WP_Hook->do_action() #6 /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-includes/general-template.php(3441): do_action() #7 /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-content/themes/webstijl-pro/header.php(22): wp_head() #8 /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-includes/template.php(880): require_once('...') #9 /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-includes/template.php(815): load_template() #10 /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-includes/general-template.php(48): locate_template() #11 /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-content/themes/webstijl-pro/index.php(15): get_header() #12 /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-includes/template-loader.php(132): include('...') #13 /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-blog-header.php(19): require_once('...') #14 /var/www/vhosts/mrloyalbrand.com/httpdocs/index.php(17): require('...') #15 {main} thrown in /var/www/vhosts/mrloyalbrand.com/httpdocs/wp-includes/class-wp-hook.php on line 353