Snapchat can be a really good app for teenagers because of its filters and other things, but sometimes it can crash without any reason. Don't worry you can fix this error easily just follow the steps given below:-
- Restart your phone and try again
- Clear Cache of your Snapchat application
- Uninstall the Snapchat app and reinstall it
- Update your Snapchat application
You can read this article for more solutions :- https://getassist.net/snapchat-keeps-crashing-how-to-fix/ (https://getassist.net/snapchat-keeps-crashing-how-to-fix/)