Why can't I access my storage on Galaxy s6 edge?

[AC Question]

I was deleting some app data on my storage cause I needed some more space but then I guess I did something because I wasn't really paying attention when I hit delete all data from the settings app and all of a sudden my setting app quit. I tried going back on to the storage but whenever I click on storage it says unfortunately settings has stopped. I thought something was wrong with my settings but when I went to wifi or something else I can change stuff and etc, but when I click on storage it just quits settings. Its only storage that keeps quitting. This is my first time having a galaxy or just anything besides iphone so I'm clueless...... Thank you!