I have used gitlab for quite a while as it provides me with quite some flexibility and have some additional advantages over it’s competitor github. I usually use public / private key authentication to push my codes onto the server. but after a fresh installation, I saw the following error when trying to work with gitlab. $ git clone firstname.lastname@example.org:nuclearpasta/vehiclebooking.git Cloning into 'vehiclebooking'... email@example.com: Permission denied (publickey). fatal: Could not read from remote repository.