Fatal error: Uncaught GuzzleHttp\Exception\ClientException: Client error: `POST https://fcm.googleapis.com/v1/projects/confide-14953/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:\xampp\htdocs\CONFIDE-TEST\v1\notification\vendor\guzzlehttp\guzzle\src\Exception\RequestException.php:111 Stack trace: #0 C:\xampp\htdocs\CONFIDE-TEST\v1\notification\vendor\guzzlehttp\guzzle\src\Middleware.php(72): GuzzleHttp\Exception\RequestException::create(Object(GuzzleHttp\Psr7\Request), Object(GuzzleHttp\Psr7\Response), NULL, Array, NULL) #1 C:\xampp\htdocs\CONFIDE-TEST\v1\notification\vendor\guzzlehttp\promises\src\Promise.php(209): GuzzleHttp\Middleware::GuzzleHttp\{closure}(Object(GuzzleHttp\Psr7\Response)) #2 C:\xampp\htdocs\CONFIDE-TEST\v1\notification\vendor\guzzlehttp\promises\src\Promise.php(158): GuzzleHttp\Promise\Promise::callHandler(1, Object(GuzzleHttp\Psr7\Response), NULL) #3 C:\xampp\htdocs\CONFIDE-TEST\v1\notification\vendor\guzzlehttp\promises\src\TaskQueue.php(52): GuzzleHttp\Promise\Promise::GuzzleHttp\Promise\{closure}() #4 C:\xampp\htdocs\CONFIDE-TEST\v1\notification\vendor\guzzlehttp\promises\src\Promise.php(251): GuzzleHttp\Promise\TaskQueue->run(true) #5 C:\xampp\htdocs\CONFIDE-TEST\v1\notification\vendor\guzzlehttp\promises\src\Promise.php(227): GuzzleHttp\Promise\Promise->invokeWaitFn() #6 C:\xampp\htdocs\CONFIDE-TEST\v1\notification\vendor\guzzlehttp\promises\src\Promise.php(272): GuzzleHttp\Promise\Promise->waitIfPending() #7 C:\xampp\htdocs\CONFIDE-TEST\v1\notification\vendor\guzzlehttp\promises\src\Promise.php(229): GuzzleHttp\Promise\Promise->invokeWaitList() #8 C:\xampp\htdocs\CONFIDE-TEST\v1\notification\vendor\guzzlehttp\promises\src\Promise.php(69): GuzzleHttp\Promise\Promise->waitIfPending() #9 C:\xampp\htdocs\CONFIDE-TEST\v1\notification\vendor\guzzlehttp\guzzle\src\Client.php(189): GuzzleHttp\Promise\Promise->wait() #10 C:\xampp\htdocs\CONFIDE-TEST\v1\notification\vendor\guzzlehttp\guzzle\src\ClientTrait.php(95): GuzzleHttp\Client->request('POST', 'https://fcm.goo...', Array) #11 C:\xampp\htdocs\CONFIDE-TEST\v1\notification\send_notification.php(52): GuzzleHttp\Client->post('https://fcm.goo...', Array) #12 {main} thrown in C:\xampp\htdocs\CONFIDE-TEST\v1\notification\vendor\guzzlehttp\guzzle\src\Exception\RequestException.php on line 111