Update app.py

app.py

@@ -282,7 +282,7 @@ async def download_high_quality_video(request: Request):
 
     downloaded_file = downloaded_files[0]
     encoded_filename = urllib.parse.quote(downloaded_file.name)
-    download_url = f"{BASE_URL}/file/{encoded_filename}"   
+    download_url = f"{base_url}/file/{encoded_filename}"   
 
     gc.collect()