None of the add reminders in a process are working.
We are getting the error:
The Notification Processing task failed with the following error message: Background processing error: Notification message delivery failed for notification of class type 'RequestManagement.Reminder' with primary key 'e19e26ca-1c28-4845-91b3-ed923bb8cb81'. There is an error in XML document (1, 1).
The reminders work find when we manually send them, but will not process automatically.