Git fetch --unshallow error


We are facing error since yesterday on our CI build. And we can’t figure it out.
The error occurs on the git fetch --unshallow command 'see log below)
Do anyone has a clue about this?

git fetch --unshallow
fatal: error in object: unshallow 0c2704a38fd3976a5c2fb52f0a5303eb621e7d7d
git-octopus origin/feature/* origin/develop
fatal: attempt to fetch/clone from a shallow repository
fatal: Could not read from remote repository.

Thanks for your help,