Fatal error: Uncaught Error: Interface "GuzzleHttp\Promise\PromiseInterface" not found in /home/fundopuh/trader.fxex.org/vendor/hamcrest/hamcrest-php/tests/Hamcrest/Coroutine.php:46 Stack trace: #0 {main} thrown in /home/fundopuh/trader.fxex.org/vendor/hamcrest/hamcrest-php/tests/Hamcrest/Coroutine.php on line 46