WARNING:root:user_name does not exist. (Reinforcement Learning in particle environment)

When the experiment is started up, and the run details is supposed to be available from the notebook, it throws an error:

WARNING:root:user_name does not exist.

I can manually review the details and the videos in the logs of the experiment, but the button is not showing up in the notebook. Also, the videos are not visible inline, nor the tensorboard (502 Bad Gateway).

Let me know what might I do wrong!

As a reference, I share my blogpost, where you can see the screenshots I expect after the experiment starts up:
https://medium.com/@evepardi/reinforcement-learning-in-gaming-583a42bc2a9b