diff --git a/Extensions/ApplicationBuilderExtensions.cs b/Extensions/ApplicationBuilderExtensions.cs
index 237593e..8f85cba 100644
--- a/Extensions/ApplicationBuilderExtensions.cs
+++ b/Extensions/ApplicationBuilderExtensions.cs
@@ -16,7 +16,7 @@ public static class ApplicationBuilderExtensions
         app.UseStaticFiles(new StaticFileOptions
         {
             FileProvider = new PhysicalFileProvider(uploadsPath),
-            RequestPath = "/uploads"
+            RequestPath = "/Uploads"
         });
     }
 
diff --git a/Services/BackgroundTaskQueue.cs b/Services/BackgroundTaskQueue.cs
index 2825f12..9622506 100644
--- a/Services/BackgroundTaskQueue.cs
+++ b/Services/BackgroundTaskQueue.cs
@@ -122,7 +122,7 @@ public sealed class BackgroundTaskQueue : IBackgroundTaskQueue, IDisposable
                 foreach (var picture in unfinishedPictures)
                 {
                     // 构建原始文件路径
-                    string relativePath = picture.Path.TrimStart('/').Replace("uploads", "Uploads");
+                    string relativePath = picture.Path.TrimStart('/');
                     string originalFilePath = Path.Combine(Directory.GetCurrentDirectory(), relativePath);
                     if (File.Exists(originalFilePath))
                     {
@@ -255,7 +255,7 @@ public sealed class BackgroundTaskQueue : IBackgroundTaskQueue, IDisposable
             {
                 // 本地存储缩略图
                 relativeThumbnailPath =
-                    $"/uploads/{Path.GetRelativePath("Uploads", Path.GetDirectoryName(thumbnailPath)!)}/{Path.GetFileName(thumbnailPath)}";
+                    $"/Uploads/{Path.GetRelativePath("Uploads", Path.GetDirectoryName(thumbnailPath)!)}/{Path.GetFileName(thumbnailPath)}";
                 picture.ThumbnailPath = relativeThumbnailPath.Replace('\\', '/');
             }
             else if (picture.StorageType == StorageType.Telegram)
diff --git a/Services/StorageProvider/LocalStorageProvider.cs b/Services/StorageProvider/LocalStorageProvider.cs
index 34913ca..4d4852a 100644
--- a/Services/StorageProvider/LocalStorageProvider.cs
+++ b/Services/StorageProvider/LocalStorageProvider.cs
@@ -30,8 +30,10 @@ public class LocalStorageProvider(IConfigService config) : IStorageProvider
         return Task.CompletedTask;
     }
 
-    public string GetUrl(string storagePath)
+    public string GetUrl(string? storagePath)
     {
+        if (string.IsNullOrEmpty(storagePath))
+            return $"/images/unavailable.gif";
         return $"{_serverUrl}{storagePath}";
     }