Fatal error: Uncaught Error: Interface 'Kreait\Firebase\Auth\SignIn\Handler' not found in D:\site\gemini\notification\vendor\kreait\firebase-php\src\Firebase\Auth\SignIn\GuzzleHandler.php:27 Stack trace: #0 {main} thrown in D:\site\gemini\notification\vendor\kreait\firebase-php\src\Firebase\Auth\SignIn\GuzzleHandler.php on line 27