iOS Question Hosted builder can not compile?

[Nerdworld]

I'm currently trying to compile an app that we started developing four years ago (and haven't worked on since then) - there seem to be some changes to settings and IDE.
When i try to compile on Hosted builder, i only get an empty log:

We are using B4i v8.90 with Hosted Builder (username and checkbox are set correctly).
I'm kind of clueless due to the lack of error messages...