SUMMARY: Discover Crash using Lubuntu 20.04 *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** STEPS TO REPRODUCE 1. Open Discover Software Center 2. Click on Applications 3. Click on Education and/or Graphics 4. Click on Stellarium and/or GIMP 5.- Discover Crash either trying to Install Stellarium or GIMP OBSERVED RESULT Discover crash EXPECTED RESULT Next step to Install Stellarium and/or GIMP by the moment. SOFTWARE/OS VERSIONS Linux (x86_64) release 5.13.0-41-generic (Lubuntu 20.04) ADDITIONAL INFORMATION
I'm afraid version 5.18.7 is no longer supported. I would strongly recommend that you upgrade to the latest version if your distro.