Why can't I push with a new ssh key?

Question

git

I created a key
ssh-keygen -t rsa -C "[email protected]"
I added a public key to the repository, I get an error when pushing

repository access denied. access via a deployment key is read-only.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

Answer 1

Looks to me like you uploaded the new key as a "deployment" - which is read-only.
You need to add your key via profile (Github, GitLab, Gogs)