Fatal error: Uncaught mysqli_sql_exception: MySQL server has gone away in /var/www/html/nunuahub/init/classes/database.php:15 Stack trace: #0 /var/www/html/nunuahub/init/classes/database.php(15): mysqli->__construct('localhost', 'nunuahub', 'startappz@2020', 'nunuahub') #1 /var/www/html/nunuahub/init/classes/crud.php(9): Database->__construct() #2 /var/www/html/nunuahub/init/classes/product.php(291): Crud->__construct() #3 /var/www/html/nunuahub/init/classes/product.php(323): Product::getData(' product_detail...') #4 /var/www/html/nunuahub/index.php(87): Product::products('AND pd_status =...', 'ORDER BY RAND()...') #5 {main} thrown in /var/www/html/nunuahub/init/classes/database.php on line 15