Cannot clone a public repo via HTTPS

I have created a public repository in our GitLab Enterprise Edition version and trying to clone it via HTTPS but getting the below error

“SSL certificate problem: unable to get local issuer certificate”.

I’m able to open the URL and view the project but unable to clone it. Ideally I would like to clone without credentials or SSH keys. Would that be possible?

Version: GitLab Enterprise Edition - 11.7.4-ee