Gearbest sensor not working

I just added gearbest for price tracking to my HA config but nothing happened. After adding the sensor, I restartet HA but there is no new sensor. I didn’t find it in the states or somewhere else. So, is there anything wrong with my config?

https://www.home-assistant.io/components/sensor.gearbest/

sensor:
  - platform: gearbest
    currency: EUR
    items:
      - url: <URL_TO_PRODUCT_WITH_ID> 
        name: <NAME>
        currency: EUR