Warning: mysqli::__construct(): Error while reading greeting packet. PID=168635 in /var/www/html/controller/db_config.php on line 47

Fatal error: Uncaught mysqli_sql_exception: MySQL server has gone away in /var/www/html/controller/db_config.php:47 Stack trace: #0 /var/www/html/controller/db_config.php(47): mysqli->__construct() #1 /var/www/html/header.php(6): require('...') #2 /var/www/html/templates/heavy-duty-parts-for-sale-new.php(3): require('...') #3 {main} thrown in /var/www/html/controller/db_config.php on line 47