Update main.py

main.py

@@ -240,8 +240,9 @@ async def check_inactivity():
         user_session_manager.delete_inactive_sessions(inactive_period)
 
 
-app.add_task(check_inactivity())
-
+@app.on_event("startup")
+async def startup_event():
+    asyncio.create_task(check_inactivity())
 
 @app.post("/upload_files/")
 async def upload_files(response: Response, files: List[UploadFile] = File(...)):