WD my Cloud EX4 after moving Driver Fault in bay 1, 2, 3, 4

After moving NAS I receive this message and I don’t know what to do
Nas was moved into the original box and with care.
Thanks

did you move the drive from your NAS? here are some related article may help you.

https://support-en.wd.com/app/answers/detail/a_id/7721/kw/raid%20roaming
https://support-en.wd.com/app/answers/detail/a_id/25488/kw/RAID