diff --git a/src/models/Store.lua b/src/models/Store.lua
index 237f82a..e3ab415 100644
--- a/src/models/Store.lua
+++ b/src/models/Store.lua
@@ -501,12 +501,12 @@ function Store:onBuyCard(type, duration, id, actid)
         return {}
     elseif type == CardType.ActBattleCommandCard then
         if not self.owner.activity:isOpenById(actid, "ActShopGoods") then
-            skynet.error("not open, actid: " .. actid .. "; id: " .. id)
+            skynet.error("not open, actid: " .. (actid or 0) .. "; id: " .. (id or 0))
             return nil
         end
         local actCfg = csvdb["activity_ctrlCsv"][actid]
         if not actCfg then
-            skynet.error("actCfg is nil, actid: " .. actid .. "; id: " .. id)
+            skynet.error("actCfg is nil, actid: " .. (actid or 0) .. "; id: " .. (id or 0))
             return nil
         end
         local actData = self.owner.activity:getActData("BattleCommand") or {}
--
libgit2 0.21.2