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
}