RN3220 hard disk volumes in red

Hi,

This unit is from end-user, so I'm helping to troubleshoot and trying to recover the data. All the files are video from CCTV. From what I was told, all 12 hard drives are kept after the backup completed. These hard drives will be kept for a year, so one day, user insert all the hard drives to retrieve a video but they can't. The folders appear but it cannot be access due to spelling of the name.

Then I've login the admin page and saw all the hard disk is in red color. The only setting I can do is format disk. From the admin page, I clicked the Diagnostics and some error logs appeared. I'll attach some screenshot to make it clearer. Anyway, this unit is used as local network, no network is connected at all.

Please help suggest what I can do to retrieve the data. If more information needed, please let me know. Thank you very much.