Two logfiles: the first contains the crash. The second is the log of a startup.
The tail containing the crash:

[2021-09-21T13:05:20.439 CEST INFO ][   org.kde.kstars.ekos.capture] - "Capturing 180.000-second  image..."
[2021-09-21T13:05:21.102 CEST INFO ][           org.kde.kstars.indi] - Sony :  "[INFO] Starting 180 seconds exposure. "
[2021-09-21T13:07:57.371 CEST DEBG ][                org.kde.kstars] - Centering on  "09h 55m 45s" " 68° 53' 02\""
[2021-09-21T13:08:22.175 CEST CRIT ][           org.kde.kstars.indi] - INDI driver  "indi_gphoto_ccd"  crashed!
[2021-09-21T13:08:22.419 CEST INFO ][           org.kde.kstars.ekos] - "Sony is offline."
[2021-09-21T13:08:23.636 CEST INFO ][     org.kde.kstars.ekos.align] - "World Coordinate System (WCS) is enabled. CCD rotation must be set either manually in the CCD driver or by solving an image before proceeding to capture any further images, otherwise the WCS information may be invalid."
[2021-09-21T13:08:23.800 CEST INFO ][           org.kde.kstars.indi] - ZWO CCD ASI120MM Mini :  "[INFO] World Coordinate System is enabled. "
[2021-09-21T13:08:28.944 CEST INFO ][           org.kde.kstars.ekos] - Ekos received a new device:  "Sony"
[2021-09-21T13:08:29.678 CEST INFO ][           org.kde.kstars.ekos] - Websocket Message "{\"type\":\"get_cameras\"