Just a few days ago my Moto Z stopped letting me take pictures, screenshots, downloads, or update apps, and some apps (like Amazon) crash to moment I try to launch them. When I try these things, it gives me an error about not having enough storage space, but I've already freed up over 2 Gigabytes & still nothing. Any ideas what the heck is wrong with my phone, or better yet maybe how to fix it (preferably without having to resort to a factory reset)?