Remove site from web interface?

I created and then disabled site at web interface. Nevertheless system continues to download SENTINEL/Landsat data. I removed all time intervals- it does not help (have 2 downloads in progress). How to resolve without completely reinstall system?

Sorry for the late response. The downloader should have stopped, as far as I know, but a workaround is to restart it with systemctl restart sen2agri-services (after 1.8).