Can't use my password on git fetch, error 403

[Shir]

Hi, 

I'm trying to use "git fetch" for a repository I have access to (write access). 

I get this login window-

I use my password (that I even changed after this happened for the first time, to make sure I use the right one), but it won't accept it. I also tried to use the password from the Authy app, but it doesn't work too. 

After the login fails once, the same windows is shown once more, and after it is fails again, this window is shown- 

The login is failed here too, and this output is shown- 

When I use the app password as it says, I get-

 

Any idea what can I do?...

Thanks!

[Shir]

UPDATE-

I created a new ssh key, then deleted all my git repositories and re-cloned them using ssh instead of https, and it worked. 

[minnsey]

Hi You need to upgrade you Git install, either by upgrading the bundled Git version in Sourcetree in the tools/options/git tab.

Or by installing git independently and configuring Sourcetree to use it in the tools/options/git tab as a System Git install.

We'd recommend using Sourcetree 3.0.12 and/or Git 2.19.2