How can I fix the authentification problem when trying to clone my repositories via SourceTree?.

[Ruediger Lunde]

I have installed a new SourceTree software version (new computer...). When the problem occured I created a new Login and also followed the instructions in your help (clearing account settings in SourceTree). Nothing helps. Authentification in SourceTree itself is confirmed to be correct, but when trying to clone the url is not accepted. Through the bitbucket website I can access the repositories (smartiflow...). Can you please help me? I am now trying to fix things for several hours...