When it began to do that, I search on the forum and found a file to remove to correct that. All work fine, but this morning, I have made my updates by the PPA, and now, when I start Kstars, it crash again.
I have Kubuntu 15.04 on my PC
The last update of Kstars-bleeding
and when I start it, after the splash-screen, I have a little text box where I can see 'below horizon' but nothing in ??? the only way is to clic to close the dialog box ... and I have a report to kill the app ???