Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in /usr/www/users/icocoyjvsn/wp-content/plugins/ico_conferences_wp_custom/ico_conferences_wp_custom.php on line 20 and at least 2 expected in /usr/www/users/icocoyjvsn/wp-includes/class-wp-widget.php:156
Stack trace:
#0 /usr/www/users/icocoyjvsn/wp-content/plugins/ico_conferences_wp_custom/ico_conferences_wp_custom.php(20): WP_Widget->__construct()
#1 /usr/www/users/icocoyjvsn/wp-content/plugins/ico_conferences_wp_custom/ico_conferences_wp_custom.php(29): ICOConferencesWPCustom->__construct()
#2 /usr/www/users/icocoyjvsn/wp-settings.php(255): include_once('/usr/www/users/...')
#3 /usr/www/users/icocoyjvsn/wp-config.php(90): require_once('/usr/www/users/...')
#4 /usr/www/users/icocoyjvsn/wp-load.php(37): require_once('/usr/www/users/...')
#5 /usr/www/users/icocoyjvsn/wp-blog-header.php(13): require_once('/usr/www/users/...')
#6 /usr/www/users/icocoyjvsn/index.php(17): require('/usr/www/users/...')
#7 {main}
  thrown in /usr/www/users/icocoyjvsn/wp-includes/class-wp-widget.php on line 156