Live Assessment not working

I am using the DOI: 10.15468/dl.s8gw6c

I tried the Live Assessment in your dev environment.

I did the following:

I opened: http://134.94.199.209:443/en/assess-my-data I entered the DOI I waited 5 seconds I clicked on the proceed button I got the following error after seeing a loading page for roughly 10 seconds