Fatal error: Uncaught Error: Class "GuzzleHttp\Psr7\Request" not found in /home/homepaa/www/elegant-Vorlage/vendor/guzzlehttp/psr7/src/ServerRequest.php:27 Stack trace: #0 {main} thrown in /home/homepaa/www/elegant-Vorlage/vendor/guzzlehttp/psr7/src/ServerRequest.php on line 27