Warning: mysqli::__construct(): Error while reading greeting packet. PID=293702 in /var/customers/webs/Mats/www/include/index/index_application_header.php on line 128

Warning: mysqli::__construct(): (HY000/2006): MySQL server has gone away in /var/customers/webs/Mats/www/include/index/index_application_header.php on line 128

Fatal error: Uncaught Error: mysqli object is already closed in /var/customers/webs/Mats/www/include/index/index_application_header.php:129
Stack trace:
#0 /var/customers/webs/Mats/www/include/index/index_application_header.php(129): mysqli->set_charset()
#1 /var/customers/webs/Mats/www/index.php(32): require_once('...')
#2 {main}
  thrown in /var/customers/webs/Mats/www/include/index/index_application_header.php on line 129