Cloropeth maps not working

Hello guys,
All of a sudden cloropeth maps are not working anymore I can’t visualize them, it started a couple of days ago, both in on line and off-line mode. I only get to visualize the scale bar, for the rest the canvas stays empty. How can I solve it, any ideas? I use Python and Jupyter notebook.

Thank you.

Paolo

Sorry @paoloseba, our server stopped serving the required TopoJSON files for a few hours. It is fixed now.

Thank you for your answer Jack, indeed it works now!