Install firmware-atheros package to get rid of the firmware errors. The x509 stuff is a known thing with older Acers. If you have secure boot enabled, you can turn it off to see if it goes away, it’s harmless otherwise.

@Romario35 the pcie port error of this agent message is likely a kernel bug and from what research I’ve done all forums have stated it can be safely ignored.

The other errors are Certificate and firmware related.

Probably a cert that needs updated in order to access the firmware? Complete guess there but the error sites a wiki page to research.