Samsung Behold 2 :: Phone Resets On Its Own Now Cannot Find Memory Card

Sso yesterday, my phone did one of the resets on its own, thinking ok whatever (since its the norm now). When it came back up was saying please insert external memory card. Something like that. So again, its crapped out another card. I would have to check my last post to see if this happened with the old phone or the replacement. Its been just fine, now everything is gone again. I know I should back things up but when u have never had this problem b4 its not something that I always remember to do. I had removed weather widget and beautiful widget as I didn't know which one I wanted and was rearranging icons. Now I cant use either. I was checking for a schedule online.