Do a Clean install the of the latest version of Recalbox
Do not use your usb-stick
Copy your PSX BIOS (only PSX BIOS) and only 1 of the games you are having problems
Check the EmulationStation menu to see if your BIOS is recognized
Test the game
@hitmaker Your SD card is probably corrupted.
You can try to recover it with Windows, but, it may be necessary to reinstall the system and, perhaps this will not even solve ...
The recommended is to use a small SD card for the system, and put the ROMS, BIOS and other things in external storage.