Fatal error: Uncaught Error: Interface "Iterator" not found in /var/www/prod/wp-includes/class-wp-hook.php:19 Stack trace: #0 /var/www/prod/wp-includes/plugin.php(25): require() #1 /var/www/prod/wp-settings.php(51): require_once('...') #2 /var/www/prod/wp-config.php(100): require_once('...') #3 /var/www/prod/wp-load.php(50): require_once('...') #4 /var/www/prod/wp-blog-header.php(13): require_once('...') #5 /var/www/prod/index.php(17): require('...') #6 {main} thrown in /var/www/prod/wp-includes/class-wp-hook.php on line 19