Why won’t the App load?!?

I love this game and everything works perfectly. I go stretches of playing frequently and then stretches of not playing for a while. I decided I was bored and wanted to play so I clicked on the application icon and it pops up in the Dock but then goes away and doesn’t load. Can you please fix whatever is causing this? I first thought it was just my computer, but if someone else (person commented before me) then it is probably the game itself.

Crmc7 about The Sims™ 2: Super Collection