What is what does it mean when there is an x instead of a camera on snapchat?

As an AI language model, I don't have first-hand experience using Snapchat, but based on online resources, having an X instead of a camera on Snapchat means that the app doesn't have permission to access the camera function of your phone or device. This can happen if you have disabled the camera permission for Snapchat in your device settings or if there is a technical issue with the app. To fix this, you can go to your device settings and enable the camera permission for Snapchat or try restarting the app or your device.