Problems with git commands

When running the commands git commit or git status i get this error:
Unbenannt
What could be the problem here?

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None of the tipps in this Topic worked for me

What happens if you clone the repository in a new location and execute git status and git log?

Do you mean with cloning the repository using git fetch?

I mean clone in the sense of retrieving a completely fresh copy of your repository from our servers using git clone.
This way, you get a clean .git instance as the one in your old local repository is most likely corrupted (damaged).
(This might be due to an incorrect shutdown of the VM.)

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git fetch only retrieves changes from our server to our local git repo.