Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-includes/class-wp-widget-factory.php on line 71 and at least 2 expected in /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-includes/class-wp-widget.php:162 Stack trace: #0 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-includes/class-wp-widget-factory.php(71): WP_Widget->__construct() #1 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-includes/widgets.php(115): WP_Widget_Factory->register('CI_Book_Room') #2 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-content/themes/wp_santorini5-v1.0/functions/widgets/ci_widget_book_room.php(54): register_widget('CI_Book_Room') #3 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-content/themes/wp_santorini5-v1.0/panel/widgets.php(31): require_once('/customers/d/a/...') #4 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-includes/class-wp-hook.php(288): ci_load_widgets('') #5 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters(NULL, Array) #6 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #7 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-includes/widgets.php(1765): do_action('widgets_init') #8 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-includes/class-wp-hook.php(288): wp_widgets_init('') #9 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters(NULL, Array) #10 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #11 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-settings.php(523): do_action('init') #12 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-config.php(96): require_once('/customers/d/a/...') #13 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-load.php(37): require_once('/customers/d/a/...') #14 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-blog-header.php(13): require_once('/customers/d/a/...') #15 /customers/d/a/b/zavala-lighthouse.nl/httpd.www/index.php(17): require('/customers/d/a/...') #16 {main} thrown in /customers/d/a/b/zavala-lighthouse.nl/httpd.www/wp-includes/class-wp-widget.php on line 162