Warning: mysqli::__construct(): Error while reading greeting packet. PID=21 in /var/www/html/config.php on line 10

Fatal error: Uncaught mysqli_sql_exception: MySQL server has gone away in /var/www/html/config.php:10 Stack trace: #0 /var/www/html/config.php(10): mysqli->__construct('zephyr.proxy.rl...', 'root', Object(SensitiveParameterValue), 'railway', '14195') #1 /var/www/html/index.php(2): require_once('/var/www/html/c...') #2 {main} thrown in /var/www/html/config.php on line 10