Warning: PDO::query(): MySQL server has gone away in /var/www/html/mahardhi/prestashop/MT03/steady/classes/db/DbPDO.php on line 156

Warning: PDO::query(): Error reading result set's header in /var/www/html/mahardhi/prestashop/MT03/steady/classes/db/DbPDO.php on line 156

Fatal error: Uncaught PrestaShopException: Link to database cannot be established: SQLSTATE[HY000] [2002] Connection refused in /var/www/html/mahardhi/prestashop/MT03/steady/classes/db/DbPDO.php:127 Stack trace: #0 /var/www/html/mahardhi/prestashop/MT03/steady/classes/db/Db.php(379): DbPDOCore->connect() #1 /var/www/html/mahardhi/prestashop/MT03/steady/classes/db/Db.php(663): DbCore->query('SELECT *\nFROM `...') #2 /var/www/html/mahardhi/prestashop/MT03/steady/src/Adapter/EntityMapper.php(75): DbCore->getRow('SELECT *\nFROM `...') #3 /var/www/html/mahardhi/prestashop/MT03/steady/classes/ObjectModel.php(264): PrestaShop\PrestaShop\Adapter\EntityMapper->load('1', NULL, Object(ShopGroup), Array, NULL, true) #4 /var/www/html/mahardhi/prestashop/MT03/steady/classes/shop/Shop.php(551): ObjectModelCore->__construct('1') #5 /var/www/html/mahardhi/prestashop/MT03/steady/config/config.inc.php(165): ShopCore->getGroup() #6 /var/www/html/mahardhi/prestashop/MT03/steady/index.php(27): require('/var/www/html/m...') #7 {main} thrown in /var/www/html/mahardhi/prestashop/MT03/steady/classes/db/DbPDO.php on line 127