try that

ripple/userUtils.py

@@ -160,7 +160,7 @@ def getMaxCombo(userID, gameMode):
 	maxcombo = glob.db.fetch("SELECT max_combo FROM scores WHERE userid = %s AND play_mode = %s ORDER BY max_combo DESC LIMIT 1", [userID, gameMode])
 
 	# Return stats + game rank
-	return maxcombo
+	return maxcombo["max_combo"]