VGA. Output problem

I bought the app, and playing on the iPad I was exited about the potential, but somehow does not work with VGA output for a video projector or monitor ( I though it was some weird problem in my iPad, but I ask a friend to install it and it did not work, also). It crashes as soon you click the app with the cable on. Any support is welcome

Best
Joao

Btw this is 5 Starrs app But the VGA output needs to work

Kudejudas about Line Art