I have a lg lgl41c,and a lot of my apps somehow have stopped working. I would like to know how to set permissions, or defaults. I cannot find anywhere on this phone to do that. My camera is one of them, I get a message that it has stopped working, or to close any apps. that are using it. I don't know how to find out which one that would be. About a week ago,it suddenly worked, and I took 4 pics., and it stopped again.???