Deprecated: Creation of dynamic property Essentials::$loader is deprecated in /var/www/html/wp-content/plugins/essentials/includes/class-essentials.php on line 55

Deprecated: Creation of dynamic property ImportPosts::$loader is deprecated in /var/www/html/wp-content/plugins/gm-import-posts/inc/import-posts.php on line 93

Deprecated: Creation of dynamic property MSNFeed::$loader is deprecated in /var/www/html/wp-content/plugins/msn-feed/includes/class-msn-feed.php on line 56

Warning: require_once(/var/www/html/wp-admin/includes/class-wp-site-health.php): Failed to open stream: No such file or directory in /var/www/html/wp-settings.php on line 686

Fatal error: Uncaught Error: Failed opening required '/var/www/html/wp-admin/includes/class-wp-site-health.php' (include_path='.:/usr/local/lib/php') in /var/www/html/wp-settings.php:686
Stack trace:
#0 /var/www/html/wp-config.php(137): require_once()
#1 /var/www/html/wp-load.php(50): require_once('/var/www/html/w...')
#2 /var/www/html/wp-blog-header.php(13): require_once('/var/www/html/w...')
#3 /var/www/html/index.php(17): require('/var/www/html/w...')
#4 {main}
  thrown in /var/www/html/wp-settings.php on line 686