Push Notification service error
OS X 10.14.2 - macOS Server 5.7.1 - 200 iPads
I am not more able to reach iPads from mdm server: the activities remains "suspended" and in the log I can see the following errors:
0:: [247] [2019/01/07 18:48:13.018] +++ Received Push Notification service error Error Domain=com.apple.APSProvider Code=13 "Service not responding" UserInfo={NSLocalizedDescription=Service not responding}
1:: [247] [2019/01/07 18:48:13.018] EXCEPTION: NilPtr <-[DMDevicemgrd activateAPNS] (DMDevicemgrd.m:498): "'((_apnsp))' is nil">
0:: [247] [2019/01/07 18:48:13.019] -[DMDevicemgrd _activateAPNSOnThread]: Unable to activate APNS. -[DMDevicemgrd activateAPNS] (DMDevicemgrd.m:498): "'((_apnsp))' is nil"
OR
1:: [247] [2019/01/07 18:46:30.503] EXCEPTION: NilPtr <-[DMDevicemgrd activateAPNS] (DMDevicemgrd.m:498): "'((_apnsp))' is nil">
0:: [247] [2019/01/07 18:46:30.504] -[DMDevicemgrd _activateAPNSOnThread]: Unable to activate APNS. -[DMDevicemgrd activateAPNS] (DMDevicemgrd.m:498): "'((_apnsp))' is nil"
1:: [247] [2019/01/07 18:47:13.011] -[DMDevicemgrd sendPendingPushNotifications]: APNS hasn't been initialized yet, unable to send push notifications
Thank you