Everything having to do with google is malfunctioning

[AC Question]

I have a samsung Grand prime and it usually works just fine, but all of a sudden overnight my youtube app is not able to connect to my wifi, yet I get browser, and Facebook and all other apps fine. Next my google play app did the same. After that my browser still loads papers but says that every page I load is "untrusted". I've tried everything. restarting, undownloading, and downloading the apps again. Does anyone have a clue what might be going on?