I can't access my gallery as it states 'unable to open gallery. Go to settings > permissions, then allow the permissions and try again: Contacts, Calendar, Location' which I tried to do when it told me 'Screen Overlay detected. To change this permission setting, you first have to turn off the screen overlay from settings > apps.' but when scrolling down to search for the Gallery app, it is not on the list. Neither is my whatsapp or my instagram so I can't access any or download any photos at all.