Fatal error: Uncaught Error: Interface "GuzzleHttp\ClientInterface" not found in /home/salkanta/test.api.salkantay-trekking.com/vendor/guzzlehttp/guzzle/src/Client.php:13 Stack trace: #0 {main} thrown in /home/salkanta/test.api.salkantay-trekking.com/vendor/guzzlehttp/guzzle/src/Client.php on line 13