Orchestration error: (empty orchestra)

Hi,
I’m trying to set my own db. Generated 2 databases (spectrum and mfcc). When trying to run the tutorial patch with my test db I get an error:

orchidea.solve: error: orchidea: orchestration error (empty orchestra; please check filters)

I was looking for some orchestra file or anything that could have filters but can’t find it. Any help would be appreciated.
Krzysztof