OK, that is at the point the kernel starts loading.
Still double check the USB Live stick, rootfs issues so far has pretty much always means faulty media.
If possible, try to use another USB stick to test.
If that produces the same result, then hardware info needed, see if it needs a special kernel command line to load.
Calligra does not have a stable kf5 based release yet, so you can't downgrade. All that is released is KDE 4/Qt 4 based, not an option in KaOS.
PS:
Instead of changing the title to include solved, you can add the "Solved" tag (done for you now).
@kadmel you use again the old version: that one from bvbfan is not commited right now:
Right click on Raw and save target as: https://github.com/bvbfan/appmenu-qt5/blob/d8025b8dbbb7ffb54d23a5a31a9f6716464d01cc/PKGBUILD
Open Dolphin, move the PKGBUILD to an separate place, open Konsole with F4 and type makepkg -si
Wait until its build and enter then your password.
Hello, i'm french Guy who want to congratulate KaOs team for this great distribution. I' m a linux user from long years, ubuntu, debian, fedora ... with gnome or unity.
Then i try KaOs and i'm feel in love. Kde is great and kaos is very quick and stable , very impressive ... i think that i found my os
