Error mounting /dev/sdc1 at /media/ubuntu/120: Command-line `mount -t "ntfs" -o "uhelper=udisks2,nodev,nosuid,uid=999,gid=999,dmask=0077,fmask=0177" "/dev/sdc1" "/media/ubuntu/120"' exited with non-zero exit status 13: ntfs_mst_post_read_fixup_warn: magic: 0x78446e49  size: 4096   usa_ofs: 8232  usa_count: 8200: Invalid argument
Actual VCN (0x2000200020002004) of index buffer is different from expected VCN (0x4).
Failed to mount '/dev/sdc1': Input/output error
NTFS is either inconsistent, or there is a hardware fault, or it's a
SoftRAID/FakeRAID hardware. In the first case run chkdsk /f on Windows
then reboot into Windows twice. The usage of the /f parameter is very
important! If the device is a SoftRAID/FakeRAID then first activate
it and mount a different device under the /dev/mapper/ directory, (e.g.
/dev/mapper/nvidia_eahaabcc1). Please see the 'dmraid' documentation
for more details.