When I Insert My Flash Drive In The Computer An Error Message Appear Your Storage Device Is Not Formatted What Happen To my FlashDrive ????

I apologize, I am not much of a computer expert to be answering questions like this. I am just wondering whether or not your flash drive might be corrupt from something, have you tried installing a software to recover the missing data yet? It could help.
Hopefully it comes back soon; good luck, mate.