Renamed echo func and added on_shutdown func

app.py

@@ -20,4 +20,4 @@ if __name__ == '__main__':
     from aiogram import executor
     from handlers import dp
 
-    executor.start_polling(dp, on_startup=on_startup)
+    executor.start_polling(dp, on_startup=on_startup, on_shutdown=on_shutdown)

handlers/users/echo.py

@@ -3,5 +3,5 @@ from loader import dp
 
 
 @dp.message_handler()
-async def bot_start(message: types.Message):
+async def bot_echo(message: types.Message):
     await message.answer(message.text)