All applications stopped working on my Android phone

[Tackett]

I downloaded and installed an update for my Android phone today, all my applications have stopped after installing, All applications are constantly sending error massages to my screen to notify me and giving two options, Ok or Report

 

[B. Diddy]

Welcome to Android Central! Which phone? Was this an official system update pushed over-the-air to the phone, or did you manually download it from some website?