Error getting domain boundaries 'solid'
 

Hello!
I have a problem. I have been working on a problem in Ansys (Fluent) for several months now and it has all worked fine, until a couple of weeks ago when I get an error when trying to choose the first timestep in the timestep selector (results part). I was working on a new improved file so I thought there might be some problem with this, but now it doesn't work for my old files either, and there has been no such problem earlier... Anyone who knows how to fix this?
https://fbcdn-sphotos-f-a.akamaihd.n...18678960_n.jpg