I’ve formated a drive as NTFS and moved some files into it, then on Windows I got the error

Location is not available

G:\ is not accessible.
The disk structure is corrupted and unreadable.

I used chkdsk g: /f /r /x from an admin cmd but it says:

Corrupt master file table. Windows will attempt to recover master file table from disk.
Windows cannot recover master file table. CHKDSK aborted.

How should I attempt to recover the files in the drive?