Rapid flashing orange light

since a few months, the LED flashes quickly in orange and the hard disk of the NAS seems to work permanently. yet i have proceeded to a check and no anomaly detected. I also note that the LED never goes blue or white for almost a year. can anyone help me please ?
thanks

Hello,

Know the reasons-
1)- If the My Cloud device has not completed its boot process, there will be a solid amber power LED.

2)- If the Ethernet cable is unplugged or cannot connect to a switch/router, there will be a blinking amber power LED.

For more information you can check this link-
https://support.wdc.com/knowledgebase/answer.aspx?ID=25338&lang=en