Online Experiment: Unspecified JavaScript Error

URL of experiment:

Gitlab repository:

Description of the problem: title


I am running my experiment however I get the error from the title come up during my test phase.

I have tried running in both Chrome and Miscrosoft Edge and the problem persists.

Does any one have any idea what the problem could be and how to rectify it?

Thank you.

If the experiment that you have problem with is the one that you copied a link to, it is running for me with no problems. If not, it is a good idea to copy the error message here.