Your Snapchat could be saying that for a number of reasons, as much
as developers try to faze out bugs and errors through updates they
cannot completely assure that the app will function perfectly for
everyone.
The following is a list of reasons why you might be having problems with video recording on Snapchat.
Why will Snapchat not refresh?
1. Firstly check you're connected to the internet! Make sure you can use your web browser to access a website, why not try www.blurtit.com ;)
2. Make sure that your app is updated to the very latest version to ensure that any bugs may have been fixed.
3. Remove
the app from backgrounding, or in essence restart the app. IPhone's and
most androids have this backgrounding feature so make sure you try
this.
4. If you're app is still giving you an error try restarting your device, the classic "have you tried turning it on and off again?"
5. Try signing out of your Snapchat account and signing back in.
6. If
the problem persists further try deleting the app and re-installing it,
if that doesn't work try installing an older version, perhaps your
device just doesn't like the new version?
Here's a link to a very similar question that has been answered:
//technology.blurtit.com/3947724/why-does-my-snapchat-say-video-recording-failed