Fatal error: Uncaught Error: Interface "Psr\Http\Client\ClientExceptionInterface" not found in /home/simpletemp/public_html/cmm-ghg/calculator/vendor/psr/http-client/src/NetworkExceptionInterface.php:14 Stack trace: #0 {main} thrown in /home/simpletemp/public_html/cmm-ghg/calculator/vendor/psr/http-client/src/NetworkExceptionInterface.php on line 14