Swift playgrounds trouble.

I have had Playgrounds installed on my iPad since January, and used it frequently. After a couple of months with no use I wanted to take it up again, but alas - great problems!

I don't get a picture of the right half of the screen, in oher words no picture of the character I want to move, and no codes visible.

I have tried to delete and reinstall the Swift app, but no success. The right part of the screen does no show, and when I press "run the code", I get an error report, see below

Swift has been updated to 1.6.1 a moth ago and my iPad is running on IOS 11.1

Anybody who can help me?


Nils