On my Moto X Pure running the latest Marshmallow, occasionally a problem occurs where certain apps disappear and other apps crash as soon as they start saying: Unfortunately, "app name" has stopped. Usually a quick restart fixes it. It's the same apps every time, and downloads don't work until the problem goes away. This time, it's not going away. I tried cleaning the SD card that I was using as part of the system but that didn't help. If you could help quickly that would be great because many of my messenger apps aren't working. All of the apps that don't work aren't system apps
