Which action solves this issue?

Refer to the exhibit.

Apple Push Notification integration is configured in a Cisco Unified IM and Presence deployment and has been working property. Administrators now report the error “Push notification settings cannot be configured. 400 Bad Request.” in the GUI, and HTTP logs are displaying the errors that are shown in the exhibit.

Which action solves this issue?
A . Fix the network connectivity to Apple iCloud.
B . Reboot the IM&P cluster.
C . Change the HTTP proxy settings to remove errors in request syntax.
D . Update Refresh Token Manually.

Answer: D

Explanation:

Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/push_notifications/cucm_b_push- notifications-deployment-guide.pdf