Is there a way for a student to retake an assessment if they fail it

right now if the student takes an assessment and fail it there is no way for them to reset the test to retake for a passing grade. I do not have limit attempts set so i am guessing they should have the ability to retake as many times as necessary but its not doing that.

I have setup support access for you to take a look. and please dont update the plugin or theme because i made custom css changes to header page so that the theme can include a slider.