How to Fix Snapchat Closing/Crashing Issue?
If Snapchat suddenly closes or crashes, here are some common ways to fix it:

Update the AppMake sure you use the latest version of Snapchat from Play Store or App Store.

Restart Your PhoneTurning your phone off and on again can solve temporary software issues.

Clear Snapchat Cache and Data (Android)Go to Settings > Apps > Snapchat > Storage > Clear Cache and Clear Data.

Uninstall and Reinstall the AppReinstalling can fix corrupted files in the app.

Update Your Phone’s SoftwareMake sure your phone’s operating system is up to date to avoid compatibility issues.

Check Your Internet ConnectionSnapchat needs a good internet connection. Test your Wi-Fi or mobile data.

Close Background AppsClose unnecessary apps running in the background to improve performance.

Contact Snapchat SupportIf the problem continues, visit Snapchat’s official support page:snapchat.com/support

If you want more specific help, share your device model and OS version.