Render doesn't work.. message undefined method for nilClass

hi,
when I run the render this message appears to me, and it freezes. please help me

Better place to ask this, is Chaos Group forum https://forums.chaosgroup.com/

PS. You should write something more about SketchUp version and Vray version.

There have been reports in the past about similar errors from Vray involving undefined methods on nil. They indicate bugs in the Vray extension that are triggered by particular conditions in your SketchUp model or perhaps by interaction with other installed extensions. What version of Vray do you have? The bug might have been fixed in a newer version. As the last line in the error report suggests, your best bet is to contact chaosgroup.