rendering not copleted

[techdoku]

how can this happen?
never see it before in my renderings!
settings as i always did.

[thomasteger]

Can you please provide more details? Can you charter scene?

[techdoku]

fixed it! 
something was wrong with the label I added on the material.
I deleted the material and added the basic material. then i added the label again (boxmap)
and now it renders smoothly.