Hightemperature not reading

[platofan23]

I've bought the Seed Grove Head for the Raspberry Pi Zero and a hight temperature Sensor for Grove.

I've installed grovepi and it is working with python without a problem at all. I have two other sensor working with the hat.

When I use the example for the sensor out of the repo the programm is running for ever without any output or error at all.

And my question is why and how can i solve this?

Raspberry Pi Zero W with Debian Buster and Python 3.7