Folder with Same Name in all Attach Disk (Disk 1,2,3) are Deleted and all of its content.

Folder (Lectures) are deleted from all Attach Disk (1,2,3) in the Linux Apache Web Server.

We have no idea what happen because I am the only one who have access to Root Access of Linux Web Server.

https://drive.google.com/file/d/1is3...ew?usp=sharing

Here is the Screenshot of the Disk which now contains garbage folder. i dont know what happen.

There is nothing meaningful in this image that I can now see.

Please – "start from the very beginning: (1) what is your present situation, and then (2) what happened?"

Also: "please assume that the situation, even though you do not presently understand it, is probably not as 'dire' as you right-now think it is." The material is probably not actually "gone." Take a deep breath ... and try your best now to explain everything that you think you see. We must have context.

Yesterday, early morning, some users (Instructor / Student) claim that their Lecture is not showing, so I double check in the Linux Server and found out that all Lecture Folder in Attach Disk 1, 2 and 3 are gone along with its content. But in the Disk 2, this is the one shown.

https://drive.google.com/file/d/1is3...ew?usp=sharing

I also check the storage free size of the disk, and its like all the Lecture File is gone because there are now more free space on the disk