diff --git a/Plugin.cs b/Plugin.cs
index 7893732..f79c208 100644
--- a/Plugin.cs
+++ b/Plugin.cs
@@ -8,12 +8,14 @@ using Photon.Pun;
 using BepInEx.Logging;
 using UnityEngine.Localization.PropertyVariants;
 using System;
+using CWOffline;
 
 namespace SpookTubeEX;
 
 [BepInPlugin(MyPluginInfo.PLUGIN_GUID, MyPluginInfo.PLUGIN_NAME, MyPluginInfo.PLUGIN_VERSION)]
 [BepInIncompatibility("me.loaforc.Flashcard")] // No flashcard support
 [ContentWarningPlugin(MyPluginInfo.PLUGIN_GUID, MyPluginInfo.PLUGIN_NAME, true)]
+[BepInDependency("CWOffline", BepInDependency.DependencyFlags.HardDependency)]
 public class Plugin : BaseUnityPlugin
 {
     Harmony harmony;
@@ -52,9 +54,15 @@ class ReplayPatch
     [HarmonyPrefix]
     static bool Prefix(UploadCompleteUI __instance)
     {
+        if (CWOfflineAPI.IsGameOffline())
+        {
+            Modal.ShowError("Upload Error", "Your device is offline.");
+            return false;
+        }
+
         if (!PhotonNetwork.IsMasterClient)
         {
-            // Modal.ShowError("Upload Error", "Only the host can upload videos to SpookedTube.");
+            Modal.ShowError("Upload Error", "Only the host can upload videos to SpookTube.");
             return false;
         }
 
diff --git a/SpookedTube.csproj b/SpookedTube.csproj
index 8f118f2..8d25a67 100644
--- a/SpookedTube.csproj
+++ b/SpookedTube.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net472</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
     <AssemblyName>com.redbigz.SpookTubeEX</AssemblyName>
     <Product>SpookTubeEX</Product>
     <Description>Upload your videos to a website and watch others' videos!</Description>
@@ -75,5 +75,9 @@
     <Reference Include="Photon3Unity3D">
       <HintPath>./lib/Photon3Unity3D.dll</HintPath>
     </Reference>
+
+    <Reference Include="CWOffline">
+      <HintPath>./apis/CWOffline.dll</HintPath>
+    </Reference>
   </ItemGroup>
 </Project>
diff --git a/apis/CWOffline.dll b/apis/CWOffline.dll
new file mode 100644
index 0000000..57eaea5
Binary files /dev/null and b/apis/CWOffline.dll differ
diff --git a/build.sh b/build.sh
index cc05b72..2751cd7 100644
--- a/build.sh
+++ b/build.sh
@@ -3,5 +3,5 @@ cp buildResources/* .build
 cp README.md .build
 sed -i -e "s/img\//https\:\/\/git.redbigz.com\/SpookTube\/SpookTubeEX\/media\/branch\/main\/img\//g" .build/README.md
 dotnet build -c release
-cp -r bin/Release/net472/com.redbigz.SpookTubeEX.dll .build/BepInEx/plugins
+cp -r bin/Release/netstandard2.1/com.redbigz.SpookTubeEX.dll .build/BepInEx/plugins
 jar -cf SpookTubeEX.zip -C .build/ .
\ No newline at end of file