Board Game Arena

Since yesterday I'm getting this error when trying to enter Sandbox:


I tried to leave the sandbox table but when I start a new one I got the same error again.
Is it a general problem or how can i fix it?

Thanks!

The image attached isn't working for me. But have you tried re-publishing?

HQ063's image:

It looks like you are identified as one of the dummy sandbox user instead of your studio user. Did you try logging off and on again?

Thanks for fixing the image and for the answer, it helped a lot. I think now I have a better understanding of the problem and I know how to fix it.
It happens when in a test session I try to play as one of the dummy players using the arrow after the nickname. If after doing that I try to get back to the editor I got that error. But now I understand it, I know how to solve it