Can not get images and videos

[futurify-ydang]

I am using version 1.4.9 to retrieve data but it does not contain any media values such as image, video. Please give me some instructions please!
Thanks
Here is my code

        [HttpGet("{id}")]
        public async Task<IActionResult> Get(string id)
        {
            var api = await GetPrismicApi();
            var response = await api.GetByID(id);
            return Ok(response);
        }

And this is result i got