Fatal error: Uncaught GuzzleHttp\Exception\ClientException: Client error: `POST https://myanimelist.net/v1/oauth2/token` resulted in a `400 Bad Request` response: {"error":"invalid_request","message":"The request is missing a required parameter, includes an invalid parameter value, includes a parameter more than once, or is otherwise malformed.","hint":"Check the `code` parameter"} in /home/phpsig/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php:113 Stack trace: #0 /home/phpsig/vendor/guzzlehttp/guzzle/src/Middleware.php(65): GuzzleHttp\Exception\RequestException::create(Object(GuzzleHttp\Psr7\Request), Object(GuzzleHttp\Psr7\Response)) #1 /home/phpsig/vendor/guzzlehttp/promises/src/Promise.php(204): GuzzleHttp\Middleware::GuzzleHttp\{closure}(Object(GuzzleHttp\Psr7\Response)) #2 /home/phpsig/vendor/guzzlehttp/promises/src/Promise.php(153): GuzzleHttp\Promise\Promise::callHandler(1, Object(GuzzleHttp\Psr7\Response), NULL) #3 /home/phpsig/vendor/guzzlehttp/promises/src/TaskQueue.php(48): GuzzleHttp\Promise\Prom in /home/phpsig/vendor/kamermans/guzzle-oauth2-subscriber/src/OAuth2Handler.php on line 289