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?

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