Hello fahmirazak
I hope your issue got solved back in may. But if it didn´t, I asked around and the Reset Led is on when you press the reset button, normally. But in case you are not pressing the button, it means the micro is resetting itself. This could mean that there is a program doing it or that there is nothing on the flash. It could also be a problem with the microcontroller.
Depending if you can program you mcu, is if it is broken.
Regards,