Fatal error: Uncaught PrestaShopException: Link to database cannot be established: SQLSTATE[HY000] [2002] Connection refused in /var/www/prestashop/classes/db/DbPDO.php:119 Stack trace: #0 /var/www/prestashop/classes/db/Db.php(380): DbPDOCore->connect() #1 /var/www/prestashop/classes/db/Db.php(614): DbCore->query() #2 /var/www/prestashop/classes/module/Module.php(345): DbCore->executeS() #3 /var/www/prestashop/modules/productquotation/productquotation.php(35): ModuleCore->__construct() #4 [internal function]: ProductQuotation->__construct() #5 /var/www/prestashop/src/Core/Foundation/IoC/Container.php(123): ReflectionClass->newInstance() #6 /var/www/prestashop/src/Core/Foundation/IoC/Container.php(153): PrestaShop\PrestaShop\Core\Foundation\IoC\Container->makeInstanceFromClassName() #7 /var/www/prestashop/src/Core/Foundation/IoC/Container.php(166): PrestaShop\PrestaShop\Core\Foundation\IoC\Container->doMake() #8 /var/www/prestashop/src/Adapter/ServiceLocator.php(70): PrestaShop\PrestaShop\Core\Foundation\IoC\Container->mak in /var/www/prestashop/classes/db/DbPDO.php on line 119