Sudden Attack Doesn't Work At My PC With Comodo SandBoxie ?

I play a game called Sudden Attack at the moment i have 3 Pc’s 2 works the sandboxie with it and my original 1 doesn’t work i try to do every thing i could but else i block it or else i cant allow to use it so i uninstall then install just please how to unblock a program that it is Blocked from usin sandboxie any one have an idea here ?