disk error

Error mounting /dev/sda3 at /media/ubuntu/14f6a2f0-c7bd-4ff0-bacb-fe6c29e489b5: Command-line `mount -t "ext4" -o "uhelper=udisks2,nodev,nosuid" "/dev/sda3" "/media/ubuntu/14f6a2f0-c7bd-4ff0-bacb-fe6c29e489b5"' exited with non-zero exit status 32: mount: wrong fs type, bad option, bad superblock on /dev/sda3,