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