diff --git a/lua/app/userdata/battle/battle_data.lua b/lua/app/userdata/battle/battle_data.lua
index c5ce9c2c..a97fd61a 100644
--- a/lua/app/userdata/battle/battle_data.lua
+++ b/lua/app/userdata/battle/battle_data.lua
@@ -145,8 +145,8 @@ function BattleData:refreshBoard(board, blockIcon)
         local posId = ModuleManager.BattleManager:getPosId(r, c)
         local data = {
             posId = posId,
-            gridType = info[1],
-            elementType = info[2]
+            gridType = info[1] or BattleConst.GRID_TYPE.EMPTY,
+            elementType = info[2] or BattleConst.ELEMENT_TYPE.RED
         }
         if self.gridEntities[data.posId] then
             self.gridEntities[data.posId]:clear()
@@ -183,6 +183,8 @@ function BattleData:getElementTypeMap()
         for posId, entity in pairs(self.gridEntities) do
             if entity:canLink() then
                 local elementType = entity:getElementType()
+                Logger.logHighlight(posId)
+                Logger.logHighlight(elementType)
                 elementTypeMap[elementType] = (elementTypeMap[elementType] or 0) + 1
             end
         end