You really need to leave more information. Like this:
My game is crashing whenever I try to spectate or play a game on Summoners Rift. All other maps work fine; I've played on Proving Grounds and Crystal Scar and I've spectated Scar and Treeline. It crashes the moment the loading screen pops up; if I'm playing I don't reach 1%. I was playing just fine the day before the patch, but yesterday this began, and it continued tonight. Luckily, I haven't tried playing any matchmade games, so I didn't get any leaves from this.
I've attached my DxDiag information to this post. I'm on Windows 8 with a Radeon 7870.