Symptoms
Some workflows stopped. Deadline already passed, but workflow doesn't go forward.
Workflow has an "Active" status, no error is visible.
What has happened
The Workflow had an inactive version in the system for a while after a transport.
When deadline monitoring program has run (and it runs in every 3-5 minutes) all deadlines were set to "Error" Status.
However this cannot be seen in the Workflow log.
Check and fix
Activate the inactive Workflow.
Table SWWWIDH - Workflow Runtime: Deadline Monitoring of Work Items
Select all entries where Field STATUS is '02' - Error.
Set field to '01' - Active for all entries and save.
Workflow deadline monitoring program will run as scheduled and try to execute all the workflows you have just enabled.
The workflows where the workflow was fixed will go forward.
The workflows where the status was really error will get the status error in Table SWWWIDH.
The procedure will fix the workflows what need to be fixed and will not mess up those what should be faulty.