I was at the bank then I saw a message written that my SD card is missing but it was there so I decided to remove it and put it back and most of my apps are saved to it because my phone has only 1gb ram after putting back the SD card, I found out that all my apps saved to the SD card are gone and I can't still download them from play store. Please I need help. But before that my phone fell down the previous night but I could still use my apps the next morning.