Ubuntu doesn't open external USB Hard Disk

Error: mounting /dev/sdb1 at /media/ on Ubuntu 19.10

1. Open Terminal
2. Type -> sudo ntfsfix /dev/sdb1 
3. Press Enter
4. Run this command to show disks -> lsblk
5. Run this command to mount usb -> sudo ntfsfix /dev/sdb or /dev/sdb or /dev/sdb1

Check Ubuntu version

1. Open Terminal
2. Type -> lsb_release -a