Cloning repo stucks at "csl-styles"

[Undergrave]

Hi,
Something goes wrong with cloning repo. I downloaded required packages and started cloning repo using git. Of course, like in README file, I added --recursive parameter. Everything went well until step: Cloning into.... '/path-to-folder/csl-demo/cslEditorLib/external/csl-styles'. I tried several times and once I leaved my pc for about an hour -- no effects.

I'm attaching my console output. Every time was exactly the same.

Thanks for your time and patience.

Console_output.txt