ValueError: invalid language code in selected[front]: nl_BE

[sentry]

Sentry Issue: OPEN-PRICES-3ZG

ValueError: invalid language code in selected[front]: nl_BE
(6 additional frame(s) were not displayed)
...
  File "open_prices/api/products/views.py", line 69, in upload_image_in_off
    result = upload_product_image_in_off(
  File "open_prices/common/openfoodfacts.py", line 418, in upload_product_image_in_off
    return client.product.upload_image(