Mr. Goode

Click on the quiz you wish to add questions to.
Click add question. Near the top on right of quiz name.
Fill out the question details, you select the correct answer in the “Answers (required)” box.
Depending on the type of question you selected you will have a radio or check box to select which are the correct answers.

I was able to do what you wanted by just removing that property.

Had to do with HTTPS and HTTP. changed site to use HTTPS and quizzes worked

my site was doing this as well. I just changed the site location from https://example.com to https://example.com

You can find it under the file WpProQuiz_View_FrontQuiz.php on line 35.

`’only_registered_user_msg’ => __(‘You must sign in or sign up to start the quiz.’, ‘wp-pro-quiz’),