Previous version (version before V2.0) of quiz is not working.

[shraddha]

For the previous version, mainly versions before V2.0, Quiz functionality is not working.
e.g. https://github.com/virtual-labs/exp-four-bar-mechanism-nitk/tree/main/experiment

The quiz page looks like this after first attempt:

Probable cause - The backward compatibility for the quiz code seems to have broken.