Fatal error: Uncaught Error: Class 'WP_Widget' not found in /var/www/html/cuidatufauna/wp-includes/widgets/class-wp-nav-menu-widget.php:17
Stack trace:
#0 {main}
thrown in /var/www/html/cuidatufauna/wp-includes/widgets/class-wp-nav-menu-widget.php on line 17