Fatal error: Uncaught Exception: Failed to connect to database. Reason: 'SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution' in /var/www/html/system/library/db/pdo.php:11 Stack trace: #0 /var/www/html/system/library/db.php(31): DB\PDO->__construct('db', 'root', '4!r8RcFH#9', 'opencart3docker', '3306') #1 /var/www/html/system/framework.php(80): DB->__construct('pdo', 'db', 'root', '4!r8RcFH#9', 'opencart3docker', '3306') #2 /var/www/html/system/startup.php(104): require_once('/var/www/html/s...') #3 /var/www/html/index.php(19): start('catalog') #4 {main} thrown in /var/www/html/system/library/db/pdo.php on line 11