my Iphone keeps crushing even after restarting it several times
I have an Iphone 7 and last night it started crushing, meaning that if I try to close the open apps by pressing the home button twice i get a black screen and then it locks itself. Another problem that appeared is that it doesn't let me write anything (no text, no messages, no wifi password). Every time I try to press the keyboard, the app closes. I really don't know what I can do to fix it. Please help
iPhone 7