Created attachment 158517 [details] screenshot of the cli and ksystemlog showing kalendar errors SUMMARY *** 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. start kalendar from the cli, krunner or from the menu 2. the application does not open 3. logs "Object does not exist at path “/org/freedesktop/NetworkManager/ActiveConnection/4”" and "QCommandLineParser: argument list cannot be empty, it should contain at least the executable name" OBSERVED RESULT the icon indicates it is loading with the glowing circle, then nothing happens EXPECTED RESULT The app starts SOFTWARE/OS VERSIONS Operating System: KDE neon 5.27 KDE Plasma Version: 5.27.4 KDE Frameworks Version: 5.105.0 Qt Version: 5.15.9 Kernel Version: 5.19.0-41-generic (64-bit) Graphics Platform: X11 Processors: 8 × Intel® Core™ i7-1065G7 CPU @ 1.30GHz Memory: 7.5 GiB of RAM Graphics Processor: Mesa Intel® Iris® Plus Graphics Manufacturer: HP Product Name: HP Laptop 15-dy1xxx ADDITIONAL INFORMATION It has been working until yesterday. The app is configured to sync with my personal nextcloud instance