There's a crack on the plastic of my Otterbox case?

So I have an Otterbox Commuter case for my iphone 5. Yesterday i was taking the case out of my phone and the outer plastic cracked, not a big one its from the right side to where the space is for the apple logo. Is there a way to fix this crack, and if not will it affect my phone if it drops? Much Appreciated.

I would contact Otterbox and tell them it cracked and ask them to replace it. They probably will do it for free.