Saving Images to Mysql Database as Blob- Xamarin

I want to save images into my mysql database.

This is my code:

The class:

    public async void SIE()
    {
        TrialClass trialClass = new TrialClass(ImagesPaths1);
        BlogRestClient<TrialClass> restClient = new BlogRestClient<TrialClass>();
        await restClient.PostAsync(trialClass);
    }

    public class TrialClass
    {
        public List<ImageFormatClass> ImagesPath2;

        public TrialClass(List<ImageFormatClass> imagespath)
        {
            ImagesPath2 = imagespath;
        }
    }

    public class ImageFormatClass
    {
        public Image SavedImage;
        public int Format;

        public ImageFormatClass()
        {
        }
    }

    private void Post_Clicked(object sender, EventArgs e)
    {
            SIE();
    }

Web API controller:

public void Post([FromBody] TrialClass value)
{
        foreach (ImageFormatClass s in value.ImagesPath2)
        {
            string sqlstring = "server=; port= ; user id =;Password=;Database=;";
            MySqlConnection conn = new MySqlConnection(sqlstring);

            try
            {
                conn.Open();
            }
            catch (MySqlException ex)
            {
                throw ex;
            }

            string Query = "INSERT INTO test.blogimagestable (ImagesId)values( ?str);";

            MySqlCommand cmd = new MySqlCommand(Query, conn);
            cmd.Parameters.Add("?str", MySqlDbType.VarString, 256).Value = s.SavedImage;

            cmd.ExecuteReader();

            conn.Close();
        }
}

Anytime I press the post button to fire the Post_Clicked event, I get this error

Newtonsoft.Json.JsonSerializationException: 'Self referencing loop detected for property 'ManifestModule' with type 'System.Reflection.RuntimeModule'. Path 'ImagesPath2[0].SavedImage.Source.Stream.Method.Module.Assembly'.'

at `await restClient.PostAsync(trialClass);