Fatal error: Uncaught Kreait\Firebase\Exception\Messaging\NotFound: Client error: `POST https://fcm.googleapis.com/v1/projects/sitexapp/messages:send` resulted in a `404 Not Found` response: { "error": { "code": 404, "message": "Requested entity was not found.", "status": "NOT_FOUND", "detail (truncated...) in C:\wamp\www\eshop\vendor\kreait\firebase-php\src\Firebase\Exception\MessagingException.php:76 Stack trace: #0 C:\wamp\www\eshop\vendor\kreait\firebase-php\src\Firebase\Exception\MessagingException.php(51): Kreait\Firebase\Exception\MessagingException->withResponse(Object(GuzzleHttp\Psr7\Response)) #1 C:\wamp\www\eshop\vendor\kreait\firebase-php\src\Firebase\Messaging\ApiClient.php(52): Kreait\Firebase\Exception\MessagingException::fromRequestException(Object(GuzzleHttp\Exception\ClientException)) #2 C:\wamp\www\eshop\vendor\kreait\firebase-php\src\Firebase\Messaging\ApiClient.php(26): Kreait\Firebase\Messaging\ApiClient->request('POST', 'messages:send', Array) #3 C:\wamp\www\eshop\vendor\kreait\fi in C:\wamp\www\eshop\vendor\kreait\firebase-php\src\Firebase\Exception\MessagingException.php on line 76