MegaWalls.finalDeaths sometimes returns 0

Author: StavZ

src/structures/MiniGames/MegaWalls.js

@@ -66,7 +66,7 @@ class MegaWalls {
      * Final deaths
      * @type {number}
      */
-    this.finalDeaths = isNaN(data.final_deaths + data.finalDeaths) ? 0 : Math.floor(data.final_deaths + data.finalDeaths);
+    this.finalDeaths = isNaN((data.final_deaths || 0) + (data.finalDeaths || 0)) ? 0 : Math.floor((data.final_deaths || 0) + (data.finalDeaths || 0));
     /**
      * Played games
      * @type {number}