see https://community.ipfire.org/t/ipfire-2-27-core-update-173-is-available-for-testing/9322/15
However, I find that on my AMD APU, whether the older A6-1450 or recent Athlon Silver 3050e, cpufrequtils needs to remain installed, for frequency scaling to be effective.
I don’t get error messages on either box. Those might be peculiar to your firmware or APU. Perhaps the messages can be ignored, since frequency scaling is effective, if there are no other problems.