Fatal error: Uncaught DomainException: Unable to read the credential file specified by GOOGLE_APPLICATION_CREDENTIALS: file /etc/secrets/credentials.json does not exist in /var/www/html/vendor/google/auth/src/CredentialsLoader.php:86 Stack trace: #0 /var/www/html/vendor/google/cloud-core/src/ClientTrait.php(155): Google\Auth\CredentialsLoader::fromEnv() #1 /var/www/html/vendor/google/cloud-core/src/ClientTrait.php(101): Google\Cloud\Storage\StorageClient->getKeyFile(Array) #2 /var/www/html/vendor/google/cloud-storage/src/StorageClient.php(179): Google\Cloud\Storage\StorageClient->configureAuthentication(Array) #3 /var/www/html/index.php(24): Google\Cloud\Storage\StorageClient->__construct() #4 {main} thrown in /var/www/html/vendor/google/auth/src/CredentialsLoader.php on line 86