Fatal error: Uncaught GuzzleHttp\Exception\ClientException: Client error: `POST https://fcm.googleapis.com/v1/projects/palich-15759/messages:send` resulted in a `404 Not Found` response: { "error": { "code": 404, "message": "Requested entity was not found.", "status": "NOT_FOUND", "detail (truncated...) in /var/www/html/firebase/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php:111 Stack trace: #0 /var/www/html/firebase/vendor/guzzlehttp/guzzle/src/Middleware.php(72): GuzzleHttp\Exception\RequestException::create() #1 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(209): GuzzleHttp\Middleware::GuzzleHttp\{closure}() #2 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(158): GuzzleHttp\Promise\Promise::callHandler() #3 /var/www/html/firebase/vendor/guzzlehttp/promises/src/TaskQueue.php(52): GuzzleHttp\Promise\Promise::GuzzleHttp\Promise\{closure}() #4 /var/www/html/firebase/vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php(167): GuzzleHttp\Promise\TaskQueue->run() #5 /var/www/html/firebase/vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php(206): GuzzleHttp\Handler\CurlMultiHandler->tick() #6 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(251): GuzzleHttp\Handler\CurlMultiHandler->execute() #7 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(227): GuzzleHttp\Promise\Promise->invokeWaitFn() #8 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(272): GuzzleHttp\Promise\Promise->waitIfPending() #9 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(229): GuzzleHttp\Promise\Promise->invokeWaitList() #10 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(69): GuzzleHttp\Promise\Promise->waitIfPending() #11 /var/www/html/firebase/vendor/guzzlehttp/promises/src/EachPromise.php(109): GuzzleHttp\Promise\Promise->wait() #12 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(251): GuzzleHttp\Promise\EachPromise->GuzzleHttp\Promise\{closure}() #13 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(227): GuzzleHttp\Promise\Promise->invokeWaitFn() #14 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(69): GuzzleHttp\Promise\Promise->waitIfPending() #15 /var/www/html/firebase/vendor/kreait/firebase-php/src/Messaging.php(113): GuzzleHttp\Promise\Promise->wait() #16 /var/www/html/firebase/vendor/kreait/firebase-php/src/Messaging.php(56): Kreait\Firebase\Messaging->sendAll() #17 /var/www/html/firebase/www/index.php(49): Kreait\Firebase\Messaging->send() #18 {main} Next Kreait\Firebase\Exception\Messaging\NotFound: Requested entity was not found. in /var/www/html/firebase/vendor/kreait/firebase-php/src/Exception/Messaging/NotFound.php:61 Stack trace: #0 /var/www/html/firebase/vendor/kreait/firebase-php/src/Exception/MessagingApiExceptionConverter.php(137): Kreait\Firebase\Exception\Messaging\NotFound->withErrors() #1 /var/www/html/firebase/vendor/kreait/firebase-php/src/Exception/MessagingApiExceptionConverter.php(145): Kreait\Firebase\Exception\MessagingApiExceptionConverter->convertResponse() #2 /var/www/html/firebase/vendor/kreait/firebase-php/src/Exception/MessagingApiExceptionConverter.php(46): Kreait\Firebase\Exception\MessagingApiExceptionConverter->convertGuzzleRequestException() #3 /var/www/html/firebase/vendor/kreait/firebase-php/src/Messaging.php(107): Kreait\Firebase\Exception\MessagingApiExceptionConverter->convertException() #4 /var/www/html/firebase/vendor/guzzlehttp/promises/src/EachPromise.php(183): Kreait\Firebase\Messaging->Kreait\Firebase\{closure}() #5 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(209): GuzzleHttp\Promise\EachPromise->GuzzleHttp\Promise\{closure}() #6 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(158): GuzzleHttp\Promise\Promise::callHandler() #7 /var/www/html/firebase/vendor/guzzlehttp/promises/src/TaskQueue.php(52): GuzzleHttp\Promise\Promise::GuzzleHttp\Promise\{closure}() #8 /var/www/html/firebase/vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php(167): GuzzleHttp\Promise\TaskQueue->run() #9 /var/www/html/firebase/vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php(206): GuzzleHttp\Handler\CurlMultiHandler->tick() #10 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(251): GuzzleHttp\Handler\CurlMultiHandler->execute() #11 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(227): GuzzleHttp\Promise\Promise->invokeWaitFn() #12 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(272): GuzzleHttp\Promise\Promise->waitIfPending() #13 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(229): GuzzleHttp\Promise\Promise->invokeWaitList() #14 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(69): GuzzleHttp\Promise\Promise->waitIfPending() #15 /var/www/html/firebase/vendor/guzzlehttp/promises/src/EachPromise.php(109): GuzzleHttp\Promise\Promise->wait() #16 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(251): GuzzleHttp\Promise\EachPromise->GuzzleHttp\Promise\{closure}() #17 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(227): GuzzleHttp\Promise\Promise->invokeWaitFn() #18 /var/www/html/firebase/vendor/guzzlehttp/promises/src/Promise.php(69): GuzzleHttp\Promise\Promise->waitIfPending() #19 /var/www/html/firebase/vendor/kreait/firebase-php/src/Messaging.php(113): GuzzleHttp\Promise\Promise->wait() #20 /var/www/html/firebase/vendor/kreait/firebase-php/src/Messaging.php(56): Kreait\Firebase\Messaging->sendAll() #21 /var/www/html/firebase/www/index.php(49): Kreait\Firebase\Messaging->send() #22 {main} thrown in /var/www/html/firebase/vendor/kreait/firebase-php/src/Exception/Messaging/NotFound.php on line 61