diff --git a/packages/app/src/App.tsx b/packages/app/src/App.tsx
index 5cd94e2..fc2ddb4 100644
--- a/packages/app/src/App.tsx
+++ b/packages/app/src/App.tsx
@@ -3,7 +3,7 @@ import  AboutPage  from "./pages/AboutPage";
 
 import "./styles.css";
 import {
-  BrowserRouter as Router,
+  HashRouter as Router, // Use HashRouter instead of BrowserRouter
   Route,
   Routes,
   Link,
@@ -22,6 +22,7 @@ const App = () => {
           <Route path="/" element={<MainPage />} />
           <Route path="/about" element={<AboutPage/>} />
           <Route element={<>Not found</>} />
+          <Route path="*" element={<>Not found</>} />
         </Routes>
       </div>
     </Router>
diff --git a/packages/app/src/components/Video.tsx b/packages/app/src/components/Video.tsx
index fc1a403..a4ef516 100644
--- a/packages/app/src/components/Video.tsx
+++ b/packages/app/src/components/Video.tsx
@@ -6,7 +6,7 @@ const Video = memo(() => {
   return (
     <Box sx={{ width: '100%', height: '100%' }}>
       <video style={{ width: '100%', height: '100%' }} controls>
-        {/* <source src="/video.mp4" type="video/mp4" /> */}
+        <source src="/video.mp4" type="video/mp4" />
         Your browser does not support the video tag.
       </video>
     </Box>