diff --git a/frontend/src/App.jsx b/frontend/src/App.jsx
index 8afa2ab..4f0dc0a 100644
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -10,6 +10,7 @@ import { ToggleTheme } from "./components/theme/ToggleTheme.jsx";
 function App() {
   const [posts, setPosts] = useState([]);
   const [isLoading, setIsLoading] = useState(false);
+  const [LoadFailed, setLoadFailed] = useState(false);
   const onSubmitted = (post) => {
     setPosts([post, ...posts]);
   };
@@ -20,10 +21,13 @@ function App() {
     const data = await res.json();
     if (!res.ok) {
       console.error(data);
+      setIsLoading(false);
+      setLoadFailed(true);
       return;
     }
     setPosts(data);
     setIsLoading(false);
+    setLoadFailed(false);
   };
 
   useEffect(() => {
@@ -54,6 +58,7 @@ function App() {
             posts={posts}
             isLoading={isLoading}
             fetchPosts={fetchPosts}
+            LoadFailed={LoadFailed}
           />
         </Container>
       </ColorModeProvider>
diff --git a/frontend/src/components/Timeline.jsx b/frontend/src/components/Timeline.jsx
index 55f0d24..692151b 100644
--- a/frontend/src/components/Timeline.jsx
+++ b/frontend/src/components/Timeline.jsx
@@ -20,7 +20,7 @@ const formatDateTime = (dateTimeString) => {
   return new Date(dateTimeString).toLocaleString("ja-JP", options);
 };
 
-export const Timeline = ({ posts, isLoading, fetchPosts }) => {
+export const Timeline = ({ posts, isLoading, fetchPosts, LoadFailed}) => {
   return (
     <>
       <Box textAlign="center" m={3}>
@@ -33,6 +33,12 @@ export const Timeline = ({ posts, isLoading, fetchPosts }) => {
           {isLoading ? "読み込み中" : "更新する"}
         </Button>
       </Box>
+      <Typography textAlign="center"
+        variant="h6"
+        sx={{ color: 'error.main' }}
+        >
+          {LoadFailed ? "読み込みに失敗しました": ""}
+      </Typography>
       {posts.map((post) => (
         <Card key={post.id} sx={{ my: 2 }}>
           <CardActionArea>
diff --git a/scripts/setup.sh b/scripts/setup.sh
index 51b11b9..3a7dd9f 100755
--- a/scripts/setup.sh
+++ b/scripts/setup.sh
@@ -43,7 +43,6 @@ go mod tidy
 echo "バックエンドのセットアップが完了しました！"
 
 echo "Dockerのセットアップを開始します..."
-
 docker compose down
 docker compose build
 docker compose up -d