Fatal error: Uncaught Error: Interface "Psr\Http\Client\ClientExceptionInterface" not found in /home/kartulirest/public_html/xyz.kartulirest.de/vendor/psr/http-client/src/NetworkExceptionInterface.php:14 Stack trace: #0 {main} thrown in /home/kartulirest/public_html/xyz.kartulirest.de/vendor/psr/http-client/src/NetworkExceptionInterface.php on line 14