Send push notification stopped working - no apparent reason

[shimauk]

Hello,

my push notifications started to fail after they have been working fine for weeks.

I get this error:

BadRequest

{
  "error": {
    "code": "MissingObjectId",
    "message": "The provided object identifier was null or missing."
  }
}

any ideas whats happening?

Thank you

[Anonymous]

it works again. Thanks for resolving this issue.