I also have this problem, or something like it. Started happening after a reinstall of PureOS Byzantium in the last few months. It is affecting both a Librem 14 hardware from Purism, and also a custom hardware with PureOS installed.
I got answer in another thread that these two errors are related to load properiety firmware and pureos is strict in its open source policy so ignoring it is good solution
Thanks @FranklyFlawless