Permission failure checking authorization


When I try to run the Jupyter notebook at I get the following error:

500 : Internal Server Error
The error was:

Permission failure checking authorization, I may need a new token

I first noticed this yesterday, and it’s the same today. This behaviour happens under Google Chrome Version 68.0.3440.75 (Official Build) (64-bit) and Firefox 60.1.0esr (64-bit) on Scientific Linux 7.2.


The problem is still there for me - is it for others?