Fatal error: Uncaught Error: Interface "Http\Promise\Promise" not found in /home2/santhos2/public_html/kannan.firstmatrix.in.net/core/vendor/php-http/guzzle7-adapter/src/Promise.php:20 Stack trace: #0 {main} thrown in /home2/santhos2/public_html/kannan.firstmatrix.in.net/core/vendor/php-http/guzzle7-adapter/src/Promise.php on line 20