I've upgraded to the latest version and I don't see it anymore.
It was fine with 5.0.0.21 as well, I could see the message only sometimes and it seemed to be connected to the DVB-C/T2 tuner (an HMP Combo DVB C / T2 Hybrid USB TUNER working with dvbsky drivers) getting into an weird state.
I even need to reboot the box (sometimes) as I get the spinning "VIX" forever.
It seems also to be related to the AutobouquetsMaker scheduled run which sometimes leaves the tuner in this state - but I'll investigate further, I'm not entirely sure this is the reason or just the tuner/drivers.