Fatal error: Uncaught Error: Interface "GuzzleHttp\Promise\PromisorInterface" not found in /home13/settlepos/restaurant.settlepos.com/vendor/guzzlehttp/guzzle/src/Pool.php:38 Stack trace: #0 {main} thrown in /home13/settlepos/restaurant.settlepos.com/vendor/guzzlehttp/guzzle/src/Pool.php on line 38