Fatal error: Uncaught Error: Class "UnzerSDK\Services\EnvironmentService" not found in /var/www/html/dev.hallescherfc.de/vendor/unzerdev/php-sdk/test/Helper/TestEnvironmentService.php:13 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/unzerdev/php-sdk/test/Helper/TestEnvironmentService.php on line 13