Fatal error: Uncaught ArgumentCountError: Too few arguments to function Theme_NavMenu::_itemClassFilter(), 3 passed in /volume1/web/wordpress/wp-includes/class-wp-hook.php on line 303 and exactly 4 expected in /volume1/web/wordpress/wp-content/themes/Website47917141/library/navigation.php:131 Stack trace: #0 /volume1/web/wordpress/wp-includes/class-wp-hook.php(303): Theme_NavMenu::_itemClassFilter(Array, Object(WP_Post), Object(stdClass)) #1 /volume1/web/wordpress/wp-includes/plugin.php(189): WP_Hook->apply_filters(Array, Array) #2 /volume1/web/wordpress/wp-content/plugins/mobile-menu/includes/class-wp-mobile-menu-walker-nav-menu.php(33): apply_filters('nav_menu_css_cl...', Array, Object(WP_Post), Object(stdClass)) #3 /volume1/web/wordpress/wp-includes/class-wp-walker.php(144): WP_Mobile_Menu_Walker_Nav_Menu->start_el('', Object(WP_Post), 0, Object(stdClass)) #4 /volume1/web/wordpress/wp-includes/class-wp-walker.php(244): Walker->display_element(Object(WP_Post), Array, 3, 0, Array, '') #5 /volume1/web/wordpress/wp-include in /volume1/web/wordpress/wp-content/themes/Website47917141/library/navigation.php on line 131