fixed timestamp undefined, maybe

server.js

@@ -87,9 +87,11 @@ io.sockets.on('connection', function(socket){
 		leaderBoards.find().sort({timeStamp:-1}).limit(1, function(err, docs){
 					
 					var parsedLb = JSON.parse(lb);
-					if( parsedLb.timeStamp - docs[0].timeStamp > 600000){
-						leaderBoards.insert(parsedLb);
-						console.log("Saving stats report.");
+					if( typeof docs[0].timeStamp != "undefined" ){
+						if( parsedLb.timeStamp - docs[0].timeStamp > 600000){
+							leaderBoards.insert(parsedLb);
+							console.log("Saving stats report.");
+						}	
 					}
 		});
 		//