Error: Failed to execute git clone --mirror -- 'git@github.com:frdlweb/webfat.git' '/var/www/vhosts/default.frdl.de/.composer/cache/vcs/git-github.com-frdlweb-webfat.git/'

Cloning into bare repository '/var/www/vhosts/default.frdl.de/.composer/cache/vcs/git-github.com-frdlweb-webfat.git'...
Host key verification failed.
fatal: Could not read from remote repository.

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

Logs:
Failed to clone the git@github.com:frdlweb/webfat.git repository, try running in interactive mode so that you can enter your GitHub credentials

Error: Could not authenticate against github.com