Warning: mysqli::__construct(): Error while reading greeting packet. PID=1377153 in /var/customers/webs/Mats/test/include/index/index_application_header.php on line 126

Warning: mysqli::__construct(): (HY000/2006): MySQL server has gone away in /var/customers/webs/Mats/test/include/index/index_application_header.php on line 126

Fatal error: Uncaught Error: mysqli object is already closed in /var/customers/webs/Mats/test/include/index/index_application_header.php:127
Stack trace:
#0 /var/customers/webs/Mats/test/include/index/index_application_header.php(127): mysqli->set_charset()
#1 /var/customers/webs/Mats/test/index.php(32): require_once('...')
#2 {main}
  thrown in /var/customers/webs/Mats/test/include/index/index_application_header.php on line 127