I got a problem with Source Tree where I can't fetch or pull anything without getting this error.
Everything was working fine until Microsoft asked me to change my password on my account.
I'm not sure if this is related to that, since Source Tree doesn't have any interface to relog your account I think this is why I am blocked from my own company repository.
Hello! You'll probably need to update your credentials, but you should be seeing a prompt to do that. Could you try installing git-for-windows and making sure the "git-credential-manager" is installed? Then go to "Tools > Options > Git" and hit the "System Git" button after it's installed.
You can manually remove credentials via the Options > Accounts menu which may help trigger that prompt. Additionally you can try clicking "Terminal" and typing "git push" to see if that triggers the prompt as well.
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