Discover is broken, how to repair?

Operating System: Fedora Linux 44
KDE Plasma Version: 6.7.4
KDE Frameworks Version: 6.28.0
Qt Version: 6.11.1
Kernel Version: 7.1.7-200.fc44.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i7-7700K CPU @ 4.20GHz
Memory: 16 GiB of RAM (15.6 GiB usable)
Graphics Processor: Quadro RTX 4000

Can you check the status of the fwupd.service?

systemctl status fwupd

i don’t get it why discover require fwupd

It is not required, you can remove fwupd (it is an optional dependency) and discover won’t bug you about it again. But since fwupd is available, it tries to do firmware updating via fwupd, which is why you get that error when there is something wrong with fwupd’s daemon.

I think you can disable fwupd as a source completely in Discover by unselecting whatever is checked in “Firmware updates” in discover’s settings page:

Ok. After a hard reset it worked again.

what font is that?

Atkinson Hyperlegible Next

It’s actually designed for people with dyslexia, and even though I don’t have dyslexia (or at least I hope not), I find it easy to read.