LTFS16094E CM in the cartridge might be corrupted. Try to run ltfs with the '-o force_mount_no_eod' option.

Explanation
      
    The cartridge memory might be broken.
  

  
Operator response
      
    If possible, try again using another drive. If the problem is not solved, mount the medium on another available tape drive using the single drive edition 'ltfs' command with the '-o force_mount_no_eod' option. Back up all data to another medium.