diff --git a/App/Modules/SicModules/Config/TM/DeviceModelSystem.xml b/App/Modules/SicModules/Config/TM/DeviceModelSystem.xml
index 092aa09..7d66dbb 100644
--- a/App/Modules/SicModules/Config/TM/DeviceModelSystem.xml
+++ b/App/Modules/SicModules/Config/TM/DeviceModelSystem.xml
@@ -137,7 +137,6 @@
   </IoTempMeters>
   <IoLift4s classType="Aitex.Core.RT.Device.Unit.IoLift4" assembly="MECF.Framework.RT.EquipmentLibrary">
     <IoLift4 id="LLLift"		module="LoadLock" display="LLLift" schematicId="LLLift" unit="" aioType="" diUp="DI_LoadLockWaferCYUPFB" diDown="DI_LoadLockWaferCYDownFB" doUp="DO_LoadLockWaferCYUP" doDown="DO_LoadLockWaferCYDown" scTimeout="10"/>
-    <IoLift4 id="LoadLidLock" module="LoadLock" display="LoadLidLock" schematicId="LoadLidLock" unit="" aioType="" diUp="DI_LoadLidLocked" diDown="DI_LoadLidUnlocked" doUp="DO_LoadLidLock" doDown="DO_LoadLidUnlock" scTimeout="10" />
   </IoLift4s>
   <TMRobots assembly="SicModules" classType="SicModules.TMs.SicTMRobot">
     <TMRobot id="TMRobot" module="TMRobot" display="" schematicId="" unit="" />
diff --git a/App/Modules/SicModules/UnLoads/UnLoadModule.cs b/App/Modules/SicModules/UnLoads/UnLoadModule.cs
index 98c8b2a..0ccadd5 100644
--- a/App/Modules/SicModules/UnLoads/UnLoadModule.cs
+++ b/App/Modules/SicModules/UnLoads/UnLoadModule.cs
@@ -345,21 +345,22 @@ namespace SicModules.UnLoads
             });*/
             DATA.Subscribe($"{Name}.UnderVAC", () =>
             {
-                if (_unLoadDevice.CheckVacuum())
+                if(_unLoadDevice != null)
                 {
-                    return true;
+                    return _unLoadDevice.CheckVacuum();
                 }
+
                 return false;
 
             });
             DATA.Subscribe($"{Name}.LidState", () =>
             {
-                if (_unLoadDevice.CheckLidClose())
+                if(_unLoadDevice != null)
                 {
-                    return "Closed";
+                    return _unLoadDevice.CheckLidClose() ? "Closed" : "Open";
                 }
-                return "Open";
 
+                 return "Closed";
             });
         }
 
diff --git a/App/SicUI/MainViewModel.cs b/App/SicUI/MainViewModel.cs
index 4cfb734..73a9e78 100644
--- a/App/SicUI/MainViewModel.cs
+++ b/App/SicUI/MainViewModel.cs
@@ -1374,15 +1374,20 @@ namespace SicUI.Client
                         if (menuInfo.System is "PM1" or "PM2")
                         {
                             var rect = FindVisualChildByName<Rectangle>(container, "InnerBG");
-                            rect.Fill = menuInfo.Selected
+                            if(rect != null)
+                            {
+                                rect.Fill = menuInfo.Selected
                                 ? BgActiveContent
                                 : new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FF346294"));
+                            }
 
                             var bgBorder = FindVisualChildByName<Border>(container, "BG");
-                            bgBorder.Background = menuInfo.Selected
-                                ? BgActiveContent
-                                : new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FF346294"));
-
+                            if (bgBorder != null)
+                            {
+                                bgBorder.Background = menuInfo.Selected
+                               ? BgActiveContent
+                               : new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FF346294"));
+                            }
                         }
                     }
                 }