Error 406 was encountered in sending push request, and the reason could not be found

[18672794706]

StatusCode: 406, ReasonPhrase: 'Not Acceptable', Version: 1.1, Content: System.Net.Http.StreamContent, Headers: { Retry-After: 900 X-WNS-NOTIFICATIONSTATUS: appthrottled X-WNS-STATUS: appthrottled X-WNS-MSG-ID: 331FA2FC1F350267 X-WNS-DEBUG-TRACE: SG2PEPF0005589B MS-CV: 7m+MIF/zukuEsvNq7wwnBA.0 Strict-Transport-Security: max-age=31536000; includeSubDomains Date: Tue, 19 Jul 2022 03:24:42 GMT Content-Length: 0 }