puck.js problem - green led flash 5 times

Hi,
My puck.js not advertising anymore, i have changed the battery then the green led flash 5 times sometimes when i click the button.
In a few weeks, The old battery has suddenly lost all its power from ~90% to ~20%.

When the battery has died, i changed it with a the same new then impossible to scan it and these flashes started..

What's the meaning of green led flashing ?

Thanks!

here the script uploaded :

`reset();
	echo(0);
	notify(0);
	clearInterval();
	clearWatch();
	var presses=0;
	var timeoutDoubleClick = null;
	var nbClick = 0;
	var activeDebug = "";
	var releasedTime = 0;
	var timeoutReleased = null;
	var switchMode = null;
	var low = 0;
	var state = {press : false, release : false};
	var batteryLevel = 0;
	
	setWatch(function() {
		state.release = true;
		state.press = false;
		
		if(releasedTime){
			activeDebug = "d";
			LED.set();	
		}else{
			activeDebug = "";
		}
		nbClick++;
		if (!timeoutDoubleClick) {
			timeoutDoubleClick = setTimeout(function(){	
				timeoutDoubleClick = null;
				NRF.setAdvertising({},{
					interval:150,
					manufacturer:0x0590,
					manufacturerData:activeDebug+"clk-"+pres­ses+"-"+nbClick+"-${scriptVersion}-"+bat­teryLevel

				});
				nbClick = 0;
			}, 500);
		}
		if (nbClick > 1) {
			clearTimeout(timeoutDoubleClick);
			timeoutDoubleClick = null;

			NRF.setAdvertising({},{
				interval:150,
				manufacturer:0x0590,
				manufacturerData:activeDebug+"clk-"+pres­ses+"-"+nbClick+"-${scriptVersion}-"+bat­teryLevel
			});
			nbClick = 0;
		}
		if(presses > 98){
			presses=0;
		}
		presses++;
		
	  }, BTN, {edge:"falling", debounce:20, repeat:1});
	setWatch(function(){
		state.release = false;
		state.press = true;
		if(timeoutReleased){clearTimeout(timeout­Released);}
		timeoutReleased =  setTimeout(function(){
			timeoutReleased = null;
			if(!state.release){
				releasedTime = !releasedTime;
				var flicker = 0;
				switchMode = setInterval(function(){
					LED.set();
					flicker++;
					setTimeout(function(){
						LED.reset();
					},150);
					if(flicker == 3){clearInterval(switchMode);}
				},300);
			}
		},10000)
		LED.set();
		if(!activeDebug){
			LED2.reset();
			LED3.reset();
		}
		LED.reset();
	}, BTN, {
		edge:'rising',
		repeat:1,
		debounce:20
	});
	LED1.set();
	function sendBatteryInfo(){
			batteryLevel = Math.round(E.getBattery());
			if(batteryLevel < 20){ low = 1;}
	}
	sendBatteryInfo();
	setInterval(sendBatteryInfo,60 * 60 * 1000);
	save();\n`