Fatal error: Uncaught PrestaShopException: Link to database cannot be established: SQLSTATE[HY000] [2002] Connection refused in /var/www/html/prestashop/classes/db/DbPDO.php:127 Stack trace: #0 /var/www/html/prestashop/classes/db/Db.php(330): DbPDOCore->connect() #1 /var/www/html/prestashop/classes/db/Db.php(241): DbCore->__construct('127.0.0.1', 'presta', 'q2X5njrNEnJs', 'presta') #2 /var/www/html/prestashop/config/alias.php(47): DbCore::getInstance() #3 /var/www/html/prestashop/config/alias.php(52): pSQL('configuration') #4 /var/www/html/prestashop/classes/Configuration.php(155): bqSQL('configuration') #5 /var/www/html/prestashop/classes/Configuration.php(209): ConfigurationCore::loadConfiguration() #6 /var/www/html/prestashop/classes/PrestaShopAutoload.php(171): ConfigurationCore::get('PS_DISABLE_OVER...') #7 /var/www/html/prestashop/classes/PrestaShopAutoload.php(130): PrestaShopAutoload->generateIndex() #8 [internal function]: PrestaShopAutoload->load('Tools') #9 /var/www/html/prestashop/config/config.inc.php(85): sp in /var/www/html/prestashop/classes/db/DbPDO.php on line 127