Are you running GadgetBridge? Then its probably related to this: http://forum.espruino.com/comments/15181427/
@Raik started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Are you running GadgetBridge? Then its probably related to this: http://forum.espruino.com/comments/15181427/