Update device shadow fails about amazon-freertos HOT 4 CLOSED

static uint32_t prvGenerateShadowJSON()
{
    /* Init shadow document with settings desired and reported state of device. */
    return snprintf(pcUpdateBuffer, shadowBUFFER_LENGTH,
                    "{"
                    "\"state\":{"
                    "\"desired\":{"
                    "\"LEDstate\":%d"
                    "},"
                    "\"reported\":{"
                    "\"LEDstate\":%d,"
                    "\"accel\":{\"x\":0,\"y\":0,\"z\":0},"
                    "\"LEDinfo\":{"
                    "\"isRgbLed\":%s,"
                    "\"colors\":%s"
                    "}"
                    "}"
                    "},"
                    "\"clientToken\": \"token-%d\""
                    "}",
                    ledState, ledState, g_hasRgbLed ? "true" : "false", ledColors, (int)xTaskGetTickCount());
}