A recent update to the iOS version of Snapchat led many users to complain about constant crashes. The main culprit seems to be a maintenance update on June 28 that introduced the bug to the iOS version of the app.
A lot of Snapchat users took to twitter to complain and the company assured users that they were looking for a fix. Many of them reported a similar pattern where the app just closed with the error message, "Something went wrong - please try again later".
We're aware of an issue with the latest version of Snapchat available in the App Store. Hang tight, we are looking into it and working on a fix!— Snapchat Support (@snapchatsupport) June 28, 2021
The issue has been resolved. If you're still having trouble, please manually update to version 11.34.1.35 in the App Store— Snapchat Support (@snapchatsupport) June 28, 2021