Start by checking installed version of git on your CentOS 7 server. This version dont support "git fetch-pack"
$ git --version
git version 1.8.3.1
sudo yum -y install https://packages.endpointdev.com/rhel/7/os/x86_64/endpoint-repo.x86_64.rpm
-- sudo yum -y install https://packages.endpoint.com/rhel/7/os/x86_64/endpoint-repo-1.7-1.x86_64.rpm
sudo yum install git