unable to make a simple BLE ....

Hello ,
I have try and try but your support and documentation is not so understandble for first use....

I'm using MDBT42Q version 2.04 (because I can't update using windows computer).
this is what I want to do :
publish my device using BLE , so whenever people will scan they will se my device
simple as this
I want people will be able to see:

1. name of the devcie
   
2. battery
   
3. temp
   
   

this is what I want to upload to the MDBT42Q (after reading 10 times on the support part)

NRF.setAdvertising([
   require("ble_eddystone").get("http://www.david.com"),
  {
   name  : "David",
   showName: true,
   discoverable : true,
   connectable : false,
   scannable : true,
   manufacturer: 0x0590 ,
   0x180F :  NRF.getBattery(),
   0x1809 : [Math.round(E.getTemperature())]
  } 
], {interval:100});

but it doesn;t work
I get error

Uncaught Error: BLE error 0xc (DATA_SIZE)
at line 13 col 20
], {interval : 100});

               ^

why?
this is as the example you post

so when I upload this it is working :

NRF.setAdvertising([
   require("ble_eddystone").get("http://www.Mako.co.il"),
  {
   name  : "David",
 //  showName: true ,
 //  discoverable : true,
   connectable : false,
 //  scannable : true,
  // manufacturer: "0x0590" ,
   0x180F :  NRF.getBattery(),
   0x1809 : [Math.round(E.getTemperature())]
  }
], {interval : 100});

why?

maybe I'm missing something so this are my questions about the code above:

1. did I miss something ? just publish this information - this is whatI want to do.
   
2. what is the different between
   discoverable \scannable - isn't all the same?
   if I disable showname - I will see every data except the devcie name - right?
   
3. maybe I'm using the wrong app on my phone ?
   when I just search using bluethhoth scan - I don't see the device at all.
   when I search using "BLE Scanner" - I see the device (without any information ) but when I press "Open url" - it redirect my to my site . but no name\temp - nothing.
   when I use "nRF Connect" - I don't the name of the device just "Te" and the battery 3% temp 85
   
   

so what is wrong?

Thank you for your help!