Content Loading Problem on PSP-1000

Hi, I am trying to use RetroArch on a PSP I recently acquired. I watched the installation video, and I think I did everything correctly, but as soon as I try to run any of the .gba files I have, the screen goes dark (but is still on) for a little bit and then the system shuts off. I am using a PSP-1000 “fat”. It’s running RetroArch 1.8.5(?). I put PRO-C on it, and I think I did everything right with that, as well. (Although I mistakenly attempted to put the 6.60 version on first, when I actually needed the 6.61 version) The “information” tab tells me that mGBA , gpSP, and TempGBA are all missing BIOS files. (I’m pretty new to all this, so I don’t know anything) mGBA is also shown to be missing some “optional” BIOS files. (0.8.1 f87f9ef) Any ideas as to how I can fix this issue?

update: i figured it out. sorry for junking up the forum lol