error mounting wrong fs type bad option bad superblock missing codepage or helper program, or other error

hw@hw-H61M:~/$ sudo ntfsfix -d /dev/sdc6
[sudo] password for hw: 
Mounting volume... OK
Processing of $MFT and $MFTMirr completed successfully.
Checking the alternate boot sector... OK
NTFS volume version is 3.1.
NTFS partition /dev/sdc6 was processed successfully.