Second step of SourceTree installation (Resgistration) fails -> localhost:34106 refused to connect

[Katerina]

I am using Windows 10.

I have uninstalled SourceTree because I couldn't perform Push, I spent a lot of time trying to resolve the issue and couldn't, and decided to uninstall and reinstall it.

So, after downloading the latest version and running the installation file, on the second step

I chose Bitbucket.

A new tab in my browser opens with the url: http://localhost:34106/?code=******************&state=authenticated

The page never loads, and I am getting this error:

I have deactivated the firewall and antivirus.

Do you happen to have any idea about what I can do to proceed with the SourceTree installation?

Thanks in advance!