There is a storage exception error on Android Elo (Tablets, paypoints, etc) devices when navigating the menu. For some reason this only happens when a usb printer is plugged into the device. As soon as the usb printer is disconnected at the table or the printer, the exception stops.
When making changes in the settings, it will be necessary to unplug the printer until the changes are done. Then it can be plugged in again.