Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in /usr/www/users/nugigl/palmhill.gr/wp-includes/class-wp-widget-factory.php on line 62 and at least 2 expected in /usr/www/users/nugigl/palmhill.gr/wp-includes/class-wp-widget.php:163 Stack trace: #0 /usr/www/users/nugigl/palmhill.gr/wp-includes/class-wp-widget-factory.php(62): WP_Widget->__construct() #1 /usr/www/users/nugigl/palmhill.gr/wp-includes/widgets.php(115): WP_Widget_Factory->register() #2 /usr/www/users/nugigl/palmhill.gr/wp-content/themes/cafene/widgets/flickr-widget.php(6): register_widget() #3 /usr/www/users/nugigl/palmhill.gr/wp-includes/class-wp-hook.php(324): flickr_load_widgets() #4 /usr/www/users/nugigl/palmhill.gr/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #5 /usr/www/users/nugigl/palmhill.gr/wp-includes/plugin.php(517): WP_Hook->do_action() #6 /usr/www/users/nugigl/palmhill.gr/wp-includes/widgets.php(1862): do_action() #7 /usr/www/users/nugigl/palmhill.gr/wp-includes/class-wp-hook.php(324): wp_widgets_init() #8 /usr/www/users/nugigl/palmhill.gr/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #9 /usr/www/users/nugigl/palmhill.gr/wp-includes/plugin.php(517): WP_Hook->do_action() #10 /usr/www/users/nugigl/palmhill.gr/wp-settings.php(695): do_action() #11 /usr/www/users/nugigl/palmhill.gr/wp-config.php(96): require_once('/usr/www/users/...') #12 /usr/www/users/nugigl/palmhill.gr/wp-load.php(50): require_once('/usr/www/users/...') #13 /usr/www/users/nugigl/palmhill.gr/wp-blog-header.php(13): require_once('/usr/www/users/...') #14 /usr/www/users/nugigl/palmhill.gr/index.php(17): require('/usr/www/users/...') #15 {main} thrown in /usr/www/users/nugigl/palmhill.gr/wp-includes/class-wp-widget.php on line 163