We have a number of worflows on numerous list's, and they have recently detached them selves from the list , by that i mean that they no longer appear in the workflows area. Also they have stopped and not sent the emails that we built into them.
I looked in the Log and found this error: AutoStart Workflow: System.ArgumentException: New instances of this workflow template are currently disallowed.
From time to time they will also duplicate.
Does anyone have an idea what might be causing this as it is a urgent and serious issue?