Im creating a POST API to insert data into my Walks table and it has two ForeginKey with Difficutlies and Regions table and this is my Walk model

public class Walk
{
    public Guid Id { get; set; }
    public string Name { get; set; }
    public string Description { get; set; }
    public double LengthInKm { get; set; }
    public string? WalkImageUrl { get; set; }
    
    public Guid DifficultyId { get; set; }
    public Guid RegionId { get; set; }
   

    public Difficulty Difficulty { get; set; }
    public Region Region { get; set; }
}

I dont know why conflict happen because i checked the all the table and model. I seeded data in Regions and Difficulty and it’s still not work