Error

Command git clone --no-single-branch --depth 50 https://phongkhamdakhoanambo.vn/bac-si-tu-van-kinh-nguyet-online-mien-phi-48.html . failed: Cloning into '.'... fatal: https://phongkhamdakhoanambo.vn/bac-si-tu-van-kinh-nguyet-online-mien-phi-48.html/info/refs not valid: is this a git repository?