Warning: Error while sending QUERY packet. PID=8868 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('SELECT *\nFROM `...') #2 /opt/bitnami/apache2/htdocs/src/Adapter/EntityMapper.php(75): DbCore->getRow(Object(DbQuery)) #3 /opt/bitnami/apache2/htdocs/classes/ObjectModel.php(264): PrestaShop\PrestaShop\Adapter\EntityMapper->load('1', NULL, Object(ShopGroup), Array, NULL, true) #4 /opt/bitnami/apache2/htdocs/classes/shop/Shop.php(551): ObjectModelCore->__construct('1') #5 /opt/bitnami/apache2/htdocs/config/config.inc.php(165): ShopCore->getGroup() #6 /opt/bitnami/apache2/htdocs/index.php(28): require('/opt/bitnami/ap...') #7 {main} thrown in /opt/bitnami/apache2/htdocs/classes/db/DbPDO.php on line 127