Fatal error: Uncaught mysqli_sql_exception: Unknown database 'site' in /var/www/html/db_connect.php:3 Stack trace: #0 /var/www/html/db_connect.php(3): mysqli->__construct('db', 'root', Object(SensitiveParameterValue), 'site') #1 /var/www/html/termin.php(6): require('/var/www/html/d...') #2 {main} thrown in /var/www/html/db_connect.php on line 3