Fatal error: Uncaught Error: Interface "GuzzleHttp\Promise\PromiseInterface" not found in /home3/mpybfrah/public_html/crm-ftth-api-app-v3.9/vendor/guzzlehttp/promises/src/Promise.php:14 Stack trace: #0 {main} thrown in /home3/mpybfrah/public_html/crm-ftth-api-app-v3.9/vendor/guzzlehttp/promises/src/Promise.php on line 14