In GeoEvent Processor Manager, I created a simple Input, Output and a GeoEvent service to connect the Input and Output. It worked well for a while. But now, it service does not run actually even though all of the related items are in 'STARTED' status. I checked Logs, in which there are dozens of error messages, like that: "Failed to translate a message: GeoEventDefinition 'xxx' not found.". How can this be debugged? Thanks.