// Item not found [HTTP response status codes: 404]
{
    "error": {
        "code":"404",
        "description-code":"not-found",
        "description":"Element not found"
    }
}

// Format not supported [HTTP response status codes: 406]
{
    "error": {
        "code":"406",
        "description-code":"unknown-format",
        "description":"The requested media type is not supported"
    }
}

// Language not supported [HTTP response status codes: 406]
{
    "error": {
        "code":"406",
        "description-code":"unknown-language",
        "description":"The requested language is not available"
    }
}

// Internal server error [HTTP response status codes: 500]
{
    "error": {
        "code":"500",
        "description-code":"internal-server-error",
        "description":"The server had an internal error"
    }
}