Hi,
i've installed SourceTree an my iMac (HighSierra 10.13.6).
After creating a Login on https://id.atlassian.com/ i started SourceTree, following the instructions of the popup-window.
After the Login, i came to this last point.

But clicking at "Fertig", a new popup came

an this is endless.
After an new start of the Program, ist starts with this

Interesting: a list of my Repositories also rise up

and i can work with them (ignoring the start-popup)
What can i do?
thanks
Christian