Marathon Matches not loading on profile pages

Steps to Reproduce:

1. Visit any profile of a member that has submitted to a marathon match. For example, https://www.topcoder.com/members/wleite/details/?track=DATA_SCIENCE&subTrack=MARATHON_MATCH&tab=statistics
2. Click the "Challenges" tab.
3. You'll see a modal error like the one attached.

Expected Result:

1. A list of challenge cards should be displayed for all the past matches the user has participated in.

<img width="1141" alt="Screenshot 2019-03-22 at 23 48 31" src="https://user-images.githubusercontent.com/4612921/54854896-15f00880-4cfd-11e9-9d66-6ab5f1014ca8.png">

Final Submission Guidelines

Upload the updated code to TopCoder