Warning: mysqli_connect(): MySQL server has gone away in /var/www/lib/common.lib.php on line 1666

Warning: mysqli_connect(): Error while reading greeting packet. PID=25620 in /var/www/lib/common.lib.php on line 1666

Warning: mysqli_connect(): (HY000/2006): MySQL server has gone away in /var/www/lib/common.lib.php on line 1666
Connect Error: MySQL server has gone away