I install VPX with the same problem, I tried making empty text file "ScreenRes.txt" in tables folder, the error was gone but the game still didn't work.
log.txt
PinballX.ini
I'm new and just install PinballX on a old PC, I try to play the 3 free games but it didn't load them and return to the main screen. I can play Pinball Arcade and Zaccaria Pinball with no problem with this PC.
also is there a guide how to add games and where to get them from.