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Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in /home/www/bodymodels.de/wp-includes/class-wp-widget-factory.php on line 61 and at least 2 expected in /home/www/bodymodels.de/wp-includes/class-wp-widget.php:162 Stack trace: #0 /home/www/bodymodels.de/wp-includes/class-wp-widget-factory.php(61): WP_Widget->__construct() #1 /home/www/bodymodels.de/wp-includes/widgets.php(115): WP_Widget_Factory->register('Mfn_Flickr_Widg...') #2 /home/www/bodymodels.de/wp-content/themes/betheme/functions/widget-functions.php(16): register_widget('Mfn_Flickr_Widg...') #3 /home/www/bodymodels.de/wp-includes/class-wp-hook.php(307): mfn_register_widget('') #4 /home/www/bodymodels.de/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array) #5 /home/www/bodymodels.de/wp-includes/plugin.php(476): WP_Hook->do_action(Array) #6 /home/www/bodymodels.de/wp-includes/widgets.php(1854): do_action('widgets_init') #7 /home/www/bodymodels.de/wp-includes/class-wp-hook.php(307): wp_widgets_init('') #8 /home/www/bodymodels.de/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array) #9 /home/www/bodymodels.de/wp-includes/plugin.php(476): WP_Hook->do_action(Array) #10 /home/www/bodymodels.de/wp-settings.php(598): do_action('init') #11 /home/www/bodymodels.de/wp-config.php(114): require_once('/home/www/bodym...') #12 /home/www/bodymodels.de/wp-load.php(50): require_once('/home/www/bodym...') #13 /home/www/bodymodels.de/wp-blog-header.php(13): require_once('/home/www/bodym...') #14 /home/www/bodymodels.de/index.php(17): require('/home/www/bodym...') #15 {main} thrown in /home/www/bodymodels.de/wp-includes/class-wp-widget.php on line 162