Update on the topic.
Yesterday I disabled the timer and everything seems fine.
Today I booted without that usual error.
When I launched an update
there was only the following conflict:
ananicy-rules-git and ananicy are in conflict. Remove ananicy?
I thought it was nothing strange (ananicy-rules-git from a friend , so I confirmed (Y), than I was proposed:
Packages (11) ananicy-2.2.1-1 [removal] ananicy-cpp-1.0.0.rc2-1 ananicy-rules-git-2.2.1.r57.gad5b0f0-1
find-the-command-git-1.4.2.r2.g0fc7e85-2 flameshot-git-r1475.7199fd39-1
garuda-common-settings-2.1.2-1 garuda-icons-r30.bae0e8a-1 haveged-1.9.14-2
nlohmann-json-3.10.2-1 plymouth-git-0.9.5.r100.gdae1477-1 spdlog-1.9.2-1
find-the-command-git: by chance? Then again, I saw a firendly name as maintainer and last update tonight
After installing and rebooting everything seems to work normal and that timer is still disabled and after reboot no errors again...