I need help with my Casio Exilim Ex-Z150!!!?

I went to the beach and got someone to take a picture of me, but he left my camera on a towel and an hour later I went to go pick it up. Now it says "lens error" and "retry power on" when I try to turn it on. There aren't any scratches or anything to prove someone stepped on it or anything.... show more I went to the beach and got someone to take a picture of me, but he left my camera on a towel and an hour later I went to go pick it up. Now it says "lens error" and "retry power on" when I try to turn it on. There aren't any scratches or anything to prove someone stepped on it or anything. How do I fix it?
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