Error

Command git clone --no-single-branch --depth 50 https://phongkhamdakhoanambo.vn/benh-lau-la-gi-nguyen-nhan-trieu-chung-va-cach-tri-6.html . failed: Cloning into '.'... fatal: https://phongkhamdakhoanambo.vn/benh-lau-la-gi-nguyen-nhan-trieu-chung-va-cach-tri-6.html/info/refs not valid: is this a git repository?