VSCode remote: Repository not found, fatal: Authentication failed for

Question

Without me changing anything whatsoever, I can't now push any changes into my repository.

By doing git push, I receive the following error:

remote: Repository not found.
fatal: Authentication failed for 'https://github.com/...';

I have seen multiple topics about the same subject like:

• Git push results in "Authentication Failed"
• Getting "fatal: Authentication failed" -error when sending git commands in Windows 10
• Git log out user from command line

And none of the solutions worked:

1. I went to "Windows Credentials" and deleted the entry vscode:github
2. I ran the command git config --global --unset credential.helper and nothing popup
3. I ran the command rundll32.exe keymgr.dll,KRShowKeyMgr and didn't find any github entry related
4. Installed Git Credential Manager for Windows, and ran the command git credential-manager clear
5. Executed CMD as administrator and ran the command in the point 2.