Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-includes/class-wp-widget-factory.php on line 62 and at least 2 expected in /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-includes/class-wp-widget.php:163 Stack trace: #0 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-includes/class-wp-widget-factory.php(62): WP_Widget->__construct() #1 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-includes/widgets.php(123): WP_Widget_Factory->register('Optimized_Dropd...') #2 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-content/plugins/optimized-dropdown-menus/optimized-dm.php(149): register_widget('Optimized_Dropd...') #3 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-includes/class-wp-hook.php(324): Optimized_Dropdown_Menu->load_widget('') #4 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #5 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #6 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-includes/widgets.php(1870): do_action('widgets_init') #7 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-includes/class-wp-hook.php(324): wp_widgets_init('') #8 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #9 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #10 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-settings.php(727): do_action('init') #11 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-config.php(83): require_once('/data01/virt501...') #12 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-load.php(50): require_once('/data01/virt501...') #13 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-blog-header.php(13): require_once('/data01/virt501...') #14 /data01/virt50110/domeenid/www.fit-net.fi/htdocs/index.php(17): require('/data01/virt501...') #15 {main} thrown in /data01/virt50110/domeenid/www.fit-net.fi/htdocs/wp-includes/class-wp-widget.php on line 163