Why is my video not playing?

[Lindz]

I go to my gallery and want to watch some videos and I press the play button to watch the video and it says "Can't play video." By the way I have a lg g3 phone

 

[B. Diddy]

Welcome to Android Central! I have seen some reports that a recent Google+ update is responsible. Try uninstalling Google+ (or its updates), and then reinstall it.