async def init_bot(app: web.Application):
    bot = Bot(API_TOKEN)
    dispatcher = Dispatcher(bot)
    init_bot_handlers(dispatcher)
    set_webhook(
        dispatcher,
        webhook_path=WEBHOOK_PATH,
        on_startup=on_startup,
        on_shutdown=on_shutdown,
        skip_updates=True,
        web_app=app
    )

async def init_app():
    """App factory"""
    app = web.Application(
        logger=logger,
        debug=True    
    )
    app.add_routes(urls)
    app.on_startup.append(init_bot)
    return app

Cannot modify frozen list.

this event loop is already running.