BG34Z100-G1 with Lead acid battery

Hi,

I want to use BG34Z100-G1 with a lead acid battery YUASA NP7-12L 12V, 7Ah. I use bqStudio and I read voltage, current and temperature but remaining capacity and state of charge % are not updated (value 0) and max error  is always 100%.

What is missing ?

Thanks