Output error during show

Hi all.

Last 2 shows I had a error during a show.
A cue was running and the output showed the changing values. Only on stage nothing was happening and after a few seconds the next cue snapped in.

Looking in the log view I can across an error around that time. They are dmx state not available for output and dmx engine not found for output.

the desk is running 3.17.1.

Can somebody help me with my problem.

With kind regards.

Xavier