I've got this problem where every clara.io render fails for me. I have a premium account and neither the standard renderer nor the premium render work. Username: RenderWave
We have some issue with the vray license, and team is working on fixing the bug.But you can still use the webgl renderer to render your scene if you want. Will let you know when this issue go fixed.Sorry about that.
D: Its has been 2 years @godlzr