Fatal error: Uncaught Error: Interface "GuzzleHttp\Promise\PromiseInterface" not found in /home13/settlepos/restaurant.settlepos.com/vendor/guzzlehttp/promises/src/Promise.php:19 Stack trace: #0 {main} thrown in /home13/settlepos/restaurant.settlepos.com/vendor/guzzlehttp/promises/src/Promise.php on line 19