Quizzes Does not Work

Hi,
Quizzes are not working on my site. I am also using EDUMA but I ran out of support months at themeforest. I seriously need quizzes to be working.
After quiz started, it instantly refreshes and quiz gone failed. Issue with JavaScript as I believe. Course link: https://wpacademy.pk/course/wordpress-plugin-development-for-beginners-in-urdu-hindi/