diff --git a/server/tools/robot/virtualclient/simulate.py b/server/tools/robot/virtualclient/simulate.py
index ae8401a..a0cb0e8 100644
--- a/server/tools/robot/virtualclient/simulate.py
+++ b/server/tools/robot/virtualclient/simulate.py
@@ -73,9 +73,11 @@ class Simulate(object):
             self._updatePartObj(self._getRealPartObj(partobj))
         self._updateActivePlayerData(frame)
         for objid in frame.out_objids:
-            del self._objHash[objid]
+            if objid in self._objHash:
+                del self._objHash[objid]
         for objid in frame.del_objids:
-            del self._objHash[objid]
+            if objid in self._objHash:
+                del self._objHash[objid]
         self._chgedBuffList(frame)
         self._chgedPropList(frame)
 
@@ -133,23 +135,27 @@ class Simulate(object):
 
     def _updatePartObj(self, obj):
         entity = self._objHash[obj.obj_uniid]
-        entity.pos = obj.pos
-        entity.dir = obj.dir
+        entity.pos.x = 100
+        #entity.dir = obj.dir
 
     def _updateActivePlayerData(self, frame):
-        active_player = self._objHash[frame.active_player_id]
-        self._curr_player['obj_uniid'] = frame.active_player_id
-        self._curr_player['action_type'] = frame.action_type
-        self._curr_player['action_duration'] = frame.action_duration
-        self._curr_player['action_frameno'] = frame.action_frameno
-        self._curr_player['items'] = frame.items
-        self._curr_player['inventory'] = frame.inventory
-        self._curr_player['cur_weapon_idx'] = frame.cur_weapon_idx
-        self._curr_player['weapons'] = frame.weapons
-        self._curr_player['skill_list'] = frame.skill_list
+        if not frame.active_player_data:
+            return
+        if frame.active_player_id:
+            self._curr_player['obj_uniid'] = frame.active_player_id
+        self._curr_player['action_type'] = frame.active_player_data.action_type
+        self._curr_player['action_duration'] = frame.active_player_data.action_duration
+        self._curr_player['action_frameno'] = frame.active_player_data.action_frameno
+        self._curr_player['items'] = frame.active_player_data.items
+        self._curr_player['inventory'] = frame.active_player_data.inventory
+        self._curr_player['cur_weapon_idx'] = frame.active_player_data.cur_weapon_idx
+        self._curr_player['weapons'] = frame.active_player_data.weapons
+        self._curr_player['skill_list'] = frame.active_player_data.skill_list
 
     def _chgedBuffList(self, frame):
         for chged_buff in frame.chged_buff_list:
+            if chged_buff.obj_id not in self._objHash:
+                continue
             entity = self._objHash[chged_buff.obj_id]
             if entity:
                 if chged_buff.chg == 0:
@@ -164,15 +170,15 @@ class Simulate(object):
                 self.applyChgedProp(entity, chged_prop)
 
     def _entityUpdateBuff(self, entity, pb_buff):
-        buff = self.getBuffByUniId(self, entity, pb_buff.buff_uniid)
+        buff = self.getBuffByUniId(entity, pb_buff.buff_uniid)
         if buff:
-            entity.buff_list.erase(buff)
+            entity.buff_list.remove(buff)
         entity.buff_list.append(pb_buff)
 
     def _entityRemoveBuff(self, entity, pb_buff):
-        buff = self.getBuffByUniId(self, entity, pb_buff.buff_uniid)
+        buff = self.getBuffByUniId(entity, pb_buff.buff_uniid)
         if buff:
-            entity.buff_list.erase(buff)
+            entity.buff_list.remove(buff)
 
     def getBuffByUniId(self, entity, buff_uniid):
         for buff in entity.buff_list: