I played a bit with hornet 0.125 driver. Basically, I tried to change the rtc data, or skip it at all. It never stopped the game running. The game only reinitialized the data. Also, if I remove the timekeeper from the memory map, I am granted with an rtc error, but the game played after.
So the rtc might not be the cause of my problem.
Finding why it gives a hardware security in recent mame might help to figure why I also get this error.