WPLMS theme – Demo not working and Point system theme setup

Hi WPLMS theme support, I was trying to evaluate all the LMS demos for my website, but some of those are not working. I have already purchased your theme. The ones not loding on the laptop - chrome browser are - https://desmo.wplms.io/demos/demo6/ I have recently purchase this theme, but have not been able to choose the suitable layout from the demo list. I only want to create a quiz bank website without any courses, where the registered users can take up mock tests, exams and quizzes. At the end of the quiz, they shall be able to see their scores, and possibly also get a certificate of completion. In your view, which layout will be the best suitable for my website? I had a look at the points system, but i couldnt figure out how to skip the other features that i dont want to use in my website.
I will really appreciate your inputs and related documentation to follow the next steps. Looking forward to your quick reply.