Notfunyet

Every time I open a file it has a full screen ad. I tried to share something to a Dropbox account and it wanted access- I clicked cancel- the window kept prompting me to open Dropbox- it would not cancel- I even tried to shut down the phone but couldn’t because of the pop up window. I finally clicked open and then denied access- again it kept prompting for access- I was able to restart my phone- what the….