Our learners are receiving an error message with one of the widgets we have in one of our courses...

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Our learners are receiving an error message with one of the widgets we have in one of our courses. Error message: 'Something went wrong; We couldn't retrieve your data'.
 

The widget is showing correctly for us in Administrator view as well as in Instructor view. But the error is displaying in learner view. All other widgets on the page are working fine on all views except this one widget. Appreciate some light into this issue. Thanks.