Fatal error: Uncaught mysqli_sql_exception: MySQL server has gone away in /var/www/html/core/CData.php:30 Stack trace: #0 /var/www/html/core/CData.php(30): mysqli->__construct() #1 /var/www/html/index.php(41): Pentry\CData->__construct() #2 {main} thrown in /var/www/html/core/CData.php on line 30