Fatal error: Uncaught Error: Interface "Google\Auth\FetchAuthTokenInterface" not found in /htdocs/demos/testDFDS/plugins/google-api-php-client/vendor/google/auth/src/CredentialsLoader.php:28 Stack trace: #0 {main} thrown in /htdocs/demos/testDFDS/plugins/google-api-php-client/vendor/google/auth/src/CredentialsLoader.php on line 28