GameEx won't load MAME anymore or work with PCSXR emulator...

[MagicMan]

I am running GameEx Arcade Edition with a few emulators. They ran fine until just now, all of a sudden, it won't load MAME & gives me the screen attached in my photo.

I can play the MAME games in my favorites list with no problem, though. I did not change any MAME settings.

Also, I am trying to run Playstation One emulator, PCSXR, through GameEx and none of the games will load when I try to play them. However, if I run them directly through PCSXR, they work perfect. I checked my settings to ensure the command lines are set right & all is well there. Any idea what the issue is here as well?