Snapchat crashing phone

I have an iphone6 and since updating my phone and Snapchat this last week it has been having problems. When I am using Snapchat it will crash my phone and shut it down completely and restarts. It doesnt happen every time I use Snapchat but it happened about 7 times today and its really annoying. Can you please fix this?

Rebeccakn08 about Snapchat, v9.45.1.0