No free command is fine. I just wanted to make sure that your log is from that free command and something else.

But that Phonon::createPath: Cannot connect remind me that there was issue with sound notification. After a while kstars process run out of available file descriptors and crashed. I am not sure if it was fixed but go and disable all sound nofitication in Kstars Settings->Notification settings.There is play triangle next to them.

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