Fatal error: Uncaught CodeIgniter\Database\Exceptions\DatabaseException: Unable to connect to the database. Main connection [MySQLi]: Connection refused in /var/www/clients/client155/web500/web/shared/vendor/codeigniter4/framework/system/Database/BaseConnection.php:400 Stack trace: #0 /var/www/clients/client155/web500/web/shared/vendor/codeigniter4/framework/system/Database/BaseConnection.php(570): CodeIgniter\Database\BaseConnection->initialize() #1 /var/www/clients/client155/web500/web/shared/vendor/codeigniter4/framework/system/Database/BaseConnection.php(1320): CodeIgniter\Database\BaseConnection->query() #2 /var/www/clients/client155/web500/web/shared/vendor/codeigniter4/framework/system/Database/BaseConnection.php(1351): CodeIgniter\Database\BaseConnection->listTables() #3 /var/www/clients/client155/web500/web/releases/5/app/Modules/BASE/Languages/Config/Languages.php(18): CodeIgniter\Database\BaseConnection->tableExists() #4 /var/www/clients/client155/web500/web/shared/vendor/codeigniter4/framework/system/Config/Fa in /var/www/clients/client155/web500/web/shared/vendor/codeigniter4/framework/system/Database/BaseConnection.php on line 400