5300 to 5399 - Plug-in definition
The following table describes Plug-in definition messages:
The object could not be created on the destination server. For example, the object could be referencing a form that does not exist on the destination server.
The object could not be retrieved from the source. Check the source to verify that the object exists. If the problem persists, check your workflow to be sure that it does not reference a nonexistent object.
An object that differs from the source to the destination could not be updated on the destination.