Fatal error: Uncaught Error: Call to undefined function _deprecated_file() in /www/wp-includes/class-smtp.php:6
Stack trace:
#0 /www/wp-config.php(86): require_once()
#1 /www/wp-load.php(37): require_once('/www/wp-config....')
#2 /www/wp-blog-header.php(13): require_once('/www/wp-load.ph...')
#3 /www/index.php(17): require('/www/wp-blog-he...')
#4 {main}
  thrown in /www/wp-includes/class-smtp.php on line 6