I tried running CCleaner on my Mac the other day (10.6.8 at the time) and it crashed. Previously it had worked just fine. I restarted and tried again and received the same result.
I figured it was something to do with possible incompatibility with Snow Leopard and decided it was a good time to upgrade to 10.11 El Capitan.
Well... CCleaner still does not run. It bounces in the dock for a bit then vanishes.
Anyone deal with this issue on a Mac?