Fatal error: Uncaught Error: Interface "Kreait\Firebase\JWT\Action\FetchGooglePublicKeys\Handler" not found in /var/www/html/firePhpSdk/vendor/kreait/firebase-tokens/src/JWT/Action/FetchGooglePublicKeys/WithGuzzle6.php:16 Stack trace: #0 {main} thrown in /var/www/html/firePhpSdk/vendor/kreait/firebase-tokens/src/JWT/Action/FetchGooglePublicKeys/WithGuzzle6.php on line 16