Warning: Error while sending QUERY packet. PID=17959 in /opt/bitnami/apache2/htdocs/classes/db/DbPDO.php on line 156

Fatal error: Uncaught exception 'PrestaShopException' with message 'Link to database cannot be established: SQLSTATE[HY000] [2002] Connection refused' in /opt/bitnami/apache2/htdocs/classes/db/DbPDO.php:127 Stack trace: #0 /opt/bitnami/apache2/htdocs/classes/db/Db.php(379): DbPDOCore->connect() #1 /opt/bitnami/apache2/htdocs/classes/db/Db.php(663): DbCore->query('\n SE...') #2 /opt/bitnami/apache2/htdocs/classes/shop/ShopUrl.php(182): DbCore->getRow('\n SE...') #3 /opt/bitnami/apache2/htdocs/classes/shop/ShopUrl.php(196): ShopUrlCore::cacheMainDomainForShop(NULL) #4 /opt/bitnami/apache2/htdocs/classes/Tools.php(320): ShopUrlCore::getMainShopDomain() #5 /opt/bitnami/apache2/htdocs/classes/Link.php(58): ToolsCore::getShopDomain(true) #6 /opt/bitnami/apache2/htdocs/config/config.inc.php(233): LinkCore->__construct('https://', 'https://') #7 /opt/bitnami/apache2/htdocs/index.php(28): require('/opt/bitnami/ap...') #8 {main} thrown in /opt/bitnami/apache2/htdocs/classes/db/DbPDO.php on line 127