Creating A Heartbar

Hey, i have a question:

I followed Zacks youtube Tutorial how to create a health/heartbar and with the healthbar everything works fine.
But something didn't work with the heartbar, have a look at my screenshot.
The hearts are there in the font, but in the game preview it always shows a 0 and when i lost a live it shows 1.
Why it doesn't show the hearts there?

Thanks a lot!

 

did you actually select the new font to use in your score tracker?

 

Yes it is the new font, but it always shows 0 and when i lost a live it shows 1 i dont know how to do to show the hearts