diff --git a/VpSharp/src/Internal/Connection.cs b/VpSharp/src/Internal/Connection.cs
index 67dd1ab..4dafb55 100644
--- a/VpSharp/src/Internal/Connection.cs
+++ b/VpSharp/src/Internal/Connection.cs
@@ -11,7 +11,7 @@ internal sealed class Connection : IDisposable
 
     private byte[] _pendingBuffer;
     private readonly List<byte[]> _readyBuffers = new();
-    private Timer _timer;
+    private Timer? _timer;
     private nint _vpConnection;
 
     public Connection(nint vpConnection, object lockObject)
@@ -65,8 +65,8 @@ internal sealed class Connection : IDisposable
     {
         GCHandle handle = GCHandle.FromIntPtr(ptr);
         var connection = handle.Target as Connection;
-        string host = Marshal.PtrToStringAnsi(hostPtr);
-        if (connection is not null)
+        string? host = Marshal.PtrToStringAnsi(hostPtr);
+        if (connection is not null && host is not null)
         {
             return connection.Connect(host, port);
         }
diff --git a/VpSharp/src/VirtualParadiseClient.NativeCallbacks.cs b/VpSharp/src/VirtualParadiseClient.NativeCallbacks.cs
index f9d2848..a722040 100644
--- a/VpSharp/src/VirtualParadiseClient.NativeCallbacks.cs
+++ b/VpSharp/src/VirtualParadiseClient.NativeCallbacks.cs
@@ -45,7 +45,7 @@ public sealed partial class VirtualParadiseClient
             return;
         }
 
-        VirtualParadiseObject virtualParadiseObject = reason == ReasonCode.Success ? await ExtractObjectAsync(sender) : null;
+        VirtualParadiseObject? virtualParadiseObject = reason == ReasonCode.Success ? await ExtractObjectAsync(sender).ConfigureAwait(true) : null;
         taskCompletionSource.SetResult((reason, virtualParadiseObject));
     }
 
diff --git a/VpSharp/src/VirtualParadiseClient.NativeEvents.cs b/VpSharp/src/VirtualParadiseClient.NativeEvents.cs
index ed7a97a..55aa7e8 100644
--- a/VpSharp/src/VirtualParadiseClient.NativeEvents.cs
+++ b/VpSharp/src/VirtualParadiseClient.NativeEvents.cs
@@ -244,7 +244,7 @@ public sealed partial class VirtualParadiseClient
             virtualParadiseObject = null;
         }
 
-        _objects.TryRemove(objectId, out VirtualParadiseObject? _);
+        _objects.TryRemove(objectId, out VirtualParadiseObject _);
 
         var args = new ObjectDeletedEventArgs(avatar!, objectId, virtualParadiseObject!);
         RaiseEvent(ObjectDeleted, args);
diff --git a/VpSharp/src/VirtualParadiseClient.Objects.cs b/VpSharp/src/VirtualParadiseClient.Objects.cs
index 4ca02a6..7734cf2 100644
--- a/VpSharp/src/VirtualParadiseClient.Objects.cs
+++ b/VpSharp/src/VirtualParadiseClient.Objects.cs
@@ -98,7 +98,7 @@ public sealed partial class VirtualParadiseClient
         ReasonCode reason;
 
         if (!_objectCompletionSources.TryGetValue(id,
-                out TaskCompletionSource<(ReasonCode, VirtualParadiseObject?)>? taskCompletionSource))
+                out TaskCompletionSource<(ReasonCode, VirtualParadiseObject)>? taskCompletionSource))
         {
             taskCompletionSource = new TaskCompletionSource<(ReasonCode, VirtualParadiseObject?)>();
             _objectCompletionSources.TryAdd(id, taskCompletionSource);