My camera doesn't work anymore with no reason, what should I do?

Hello, a few weeks ago my câmera just stopped working, I have searched to get a solution to my problem but, obvously, it didn't work.

I really don't know what made this happen to my camera cause I just take pics with it so there's no reason, I think...

Anyway, if someone help me I'll be really glad. :)

Sorry for my english.