ERROR: _asyncio.Task' object has no attribute 'context'

I am using python 3.8 and I want to write a function which gets executed every 5 seconds and sets a variable x from the response of an external API. I have written a sample program which is giving me this error:

Exception in dummy API: '_asyncio.Task' object has no attribute 'context'

Code:
main.py

 if __name__ == '__main__':
    config = CONFIG.config

    loop = asyncio.get_event_loop()
    loop.run_until_complete(init_db(config))

    # Using ensure_future, as I don't want to block here, 
    # want to execute the remaining piece of code as well. 
    asyncio.ensure_future(ABC.abc(), loop=loop)
    # init cache
    init_cache(config)

    Host.host = config['HOST']
    Host.port = get_port()
    Host.name = CONFIG.static['service_name']
    Host.attach_handlers(get_request_handlers())
    Host.attach_web_middlewares([exception_handler])
    Host._apm = config.get('APM', {}).get('ENABLED', False)
    Host.run()


class ABC:
    @classmethod
    async def abc(cls):
        x  = await XYZClient.func()
        await asyncio.sleep(5)
        await cls.abc()


class XYZClient(APIClient):
    @classmethod
    async def func(cls):
        path = "/v4/dummy_api"
        result = dict()
        try:
            result = await cls.get(path)
        except Exception as ex:
            cls.logger.info("Exception in dummy API: {}".format(str(ex)))
            return result

        return result.get('data') or dict()

I am not getting where I am going wrong.
Any help would be highly appreciated.