Reading package lists... W: GPG error: http://security.debian.org/debian-security bullseye-security InRelease: At least one invalid signature was encountered. E: The repository 'http://security.debian.org/debian-security bullseye-security InRelease' is not signed. W: GPG error: http://deb.debian.org/debian bullseye InRelease: At least one invalid signature was encountered. E: The repository 'http://deb.debian.org/debian bullseye InRelease' is not signed. W: GPG error: http://deb.debian.org/debian bullseye-updates InRelease: At least one invalid signature was encountered. E: The repository 'http://deb.debian.org/debian bullseye-updates InRelease' is not signed. Cleaning up file based variables ERROR: Job failed: exit code 1