The Error log is very useful for our developers in case you want to report issues with the SkuStack application.
If you want to send the current log for today, just click on the three horizontal lines button found on the bottom left on the device (next to home/house) and click Send Log.
The logs can also be sent from the settings menu > Log. The current date will be set on the app, but you can choose a previous date from the calendar. This will open the Gmail app and populate the receiver email. All you need to do it send the email.