Fatal error: Uncaught Error: Call to undefined function the_wp_header_menu() in /var/www/web26836428/html/wp-content/themes/the-wp/header.php:24 Stack trace: #0 /var/www/web26836428/html/wp-includes/template.php(730): require_once() #1 /var/www/web26836428/html/wp-includes/template.php(676): load_template('/var/www/web268...', true, Array) #2 /var/www/web26836428/html/wp-includes/general-template.php(48): locate_template(Array, true, true, Array) #3 /var/www/web26836428/html/wp-content/themes/the-wp/single.php(9): get_header() #4 /var/www/web26836428/html/wp-includes/template-loader.php(106): include('/var/www/web268...') #5 /var/www/web26836428/html/wp-blog-header.php(19): require_once('/var/www/web268...') #6 /var/www/web26836428/html/index.php(22): require('/var/www/web268...') #7 {main} thrown in /var/www/web26836428/html/wp-content/themes/the-wp/header.php on line 24