Question [Q] UI Malfunctions

In the middle of using the app Allcast, my phone seemed to freeze up (not sure if related) and I could no longer open up the app switcher by holding down the home button. After doing a hard reboot, there is no status bar, quick settings, app switcher, and my wallpaper is black (trying to set a new wallpaper didn't change it either). Any suggestions on how to try and fix this?