If your Snapchat stops working suddenly, and you don’t know how to fix it, read the some of the steps, given below:
Make sure the server is up and running
Check if you have given the permission to the Snapchat
You should check whether your Snapchat is updated or not
See your internet connectivity
Try to clear your Snapchat cache
Restart your phone might be helpful
Try to uninstall the app and install it again