Fatal error: Uncaught Error: Class "Google\Auth\CredentialsLoader" not found in C:\xampp\htdocs\londoncityroom\vendor\google\auth\src\Credentials\ServiceAccountCredentials.php:61 Stack trace: #0 {main} thrown in C:\xampp\htdocs\londoncityroom\vendor\google\auth\src\Credentials\ServiceAccountCredentials.php on line 61