MISC6814 does not work

Hello,
I have got MISC 6814 (development board from DFRobots). I cannot find registry map for the chip on your website. There is only documentation which does not include registry map or programming description. I have found a few source codes on github, but it does not work. I can see I2C address 0x19, but I do not know how to grab data from the unit. I mean, I can read registry but most of them are empty. Have you got software - technical documentation with registry map? Or tell me how it works.