How to display leaderboard User's avatar? (Unity 5 C# Development)

I just checked my leaderboard for that feature, and of the top 10 players only 3 users have an image URL, that is probably why it is displayed empty, most people don't have an image.

You should see something like this: https://scontent.oculuscdn.com/t64.5771-25/q92/s360x360/12410454_1203177269762614_5960285820723134464_n.jpg3