Fatal error: Uncaught mysqli_sql_exception: Connection refused in /var/www/html/includes/db.connect.php:121
Stack trace:
#0 /var/www/html/includes/db.connect.php(121): mysqli->__construct()
#1 /var/www/html/includes/bootstrap.php(145): require_once('...')
#2 /var/www/html/photos/thumbnailsquery.php(2): require_once('...')
#3 /var/www/html/photos/ThumbnailsSummary.php(3): include('...')
#4 {main}
thrown in /var/www/html/includes/db.connect.php on line 121