@ploinkploink

On my RetroPie system, this error was due tu a wrong kernel. And the wrong kernel was due to an upgrade to Debian 11 (which I should never have done) and downgrade to Debian 10.

apt install --reinstall raspberrypi-bootloader raspberrypi-kernel
and reboot solved the issue.

Thanks for (re-)testing.

Will do some more detailed testing, but assume this is fine now. Any idea why the change did not apply to the binary?

Probably wasn't rebuilt after the change or something else occured during the binary build which didn't update it. We're looking into it.

And is there a place I can toss a coin for coffee or similar for the support? 😉

See the bottom of the forum pages for the donation link.

I am using the latest RetroPie 4.8.2 and all psp games are working here.
Please provide more info especialy the verbose log: https://retropie.org.uk/forum/topic/3/read-this-first