Why doesn't the git repository want to be cloned?

Question

GitHub

I get a failure when trying to clone a git repository
Quote from terminal:
git clone [email protected]:CSSSR/csssr-project-template.git
Cloning into 'csssr-project-template'...
Warning: Permanently added the RSA host key for IP address '192.30.252.129' to the list of known hosts.
Permission denied (public key).
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.

Answer 1

Try cloning via HTTPS URL, it shouldn't be a problem.

Answer 2

Most likely you don't have an ssh key.
I managed to clone only after I created a pair of keys and added them to my github account. Maybe they have some kind of account.

Answer 3

Don't know. Where to look? In theory, there should be no complications. This is an open repository