Pentax K-5 capture failed - by: noste99

I connected my Pentax K-5 via USB to my linux machine, set USB to MSC and I see the PC communicating with the DSLR. When running KStars and EKOS I launch the GPHoto DSLR driver. When taking a frame I see the camera taking the frame but do not hear the mirror flipping. ISO is set as requested but "Capture failed" and he starts over trying again.

When connecting indiserver I get the warning: " [WARNING] Shutter speed widget does not have any valid data (count=0) " and have not found what this means.
Could someone help me out please?
Regards,

Stefan