diff --git a/DysonNetwork.Sphere/Account/NotificationController.cs b/DysonNetwork.Sphere/Account/NotificationController.cs
index 06f6ec2..df4e47d 100644
--- a/DysonNetwork.Sphere/Account/NotificationController.cs
+++ b/DysonNetwork.Sphere/Account/NotificationController.cs
@@ -1,6 +1,5 @@
 using System.ComponentModel.DataAnnotations;
 using DysonNetwork.Sphere.Auth;
-using DysonNetwork.Sphere.Post;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
diff --git a/DysonNetwork.Sphere/Post/PostController.cs b/DysonNetwork.Sphere/Post/PostController.cs
index b1f7394..a8f18f9 100644
--- a/DysonNetwork.Sphere/Post/PostController.cs
+++ b/DysonNetwork.Sphere/Post/PostController.cs
@@ -125,7 +125,8 @@ public class PostController(
         var postsId = posts.Select(e => e.Id).ToList();
         var reactionMaps = await ps.GetPostReactionMapBatch(postsId);
         foreach (var post in posts)
-            post.ReactionsCount = reactionMaps[post.Id];
+            post.ReactionsCount =
+                reactionMaps.TryGetValue(post.Id, out var count) ? count : new Dictionary<string, int>();
 
         Response.Headers["X-Total"] = totalCount.ToString();
 
diff --git a/compose.yaml b/compose.yaml
index caff736..00ec211 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -1,6 +1,7 @@
 services:
-  dysonnetwork.sphere:
-    image: dysonnetwork.sphere
-    build:
-      context: .
-      dockerfile: DysonNetwork.Sphere/Dockerfile
+  sphere:
+    image: xsheep2010/dyson-sphere:latest
+    ports:
+      - "8001:8080"
+    volumes:
+      - "./keys:/app/keys"