Error: element is not expected

I need to calculate NDVI and NDWI so I’m processing atmospheric correction on 2016 images.

Sometimes when the process is around 20% (for example) the programme says that the element expected should be (SENSOR_QUALITY_FLAG) and then the process is 100% terminated succesfully. Is it really ok?

While I’m writting this I’m processing another image and this process is at 99% since seven hours ago and I don´t know if that’s normal ¿should I cancel it?

Thanks

(sorry for my english)

Dear user,

We recommend using the last available version of Sen2Cor 2.11.

When processing very old products, as suggested in point 14) of Sen2Cor FAQ, it is recommended to use product in SAFE compact format (since PB 02.04) that can be (re)downloaded, for example, from the following links:
https://scihub.copernicus.eu/dhus/#/home or Data and Information Access Services | Copernicus :
e.g. https://creodias.eu/

Please be aware of point 7) of Sen2Cor FAQ if you plan to install Sen2Cor version 2.11 on Linux recent distributions.

Cheers,

@Sen2cor_dev_team