After working properly for sever hours last night scheduler stopped working with the following error message: (I couldn't get screen saver/snipper working so I just retyped the message)

An application error occurred. Please contact DC-3 Dreams with
The following information (take a screen shot):

The callee [server [not server application]] is not available and
disappeared; all connections are invalid. The call may have
executed. [Exception from HRESULT: 0x80010007

Stack Trace:
at ACP.UtilClass.get_Scheduler[]
at DC3.Scheduler.Engine.set_Enabled[Boolean value]
at DC3.Scheduler.Engine.Run[]
at System.Threading.ThreadHelper.ThreadStart_Context[Object
at System.Threading.ExecutionContext.Run[ExecutionContext
excutionContext, ContextCallback callback, Object state]
at System.Threading.ThreadHelper.ThreadStart[]

I've never seen anything like this before (several years of operation) so maybe it's not a big deal. I have updated to 8.3.2