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Received above error trying to read Aliens Blu-ray (contains both theatrical & directors cut). The disc plays fine in the same drive for viewing with blu-ray player. Not sure what to do next.

macOS 10.14.6
Blu-ray Player Pro 3.3.17(190812)
MakeMKV v1.14.4 darwin(x64-release)


Drive Information
OS device name: /dev/rdisk8
Current profile: BD-ROM
Manufacturer: PIONEER
Product: BD-RW BDR-XS06
Revision: 1.10
Serial number: PHDL007947UC
Bus encryption flags: 13
Highest AACS version: 19

Disc Information
Data capacity: 46.50 Gb
Disc type: BD-ROM
Number of layers: 2
Channel bit length: 74,5 nm (25.0 GB max. per layer)


MakeMKV v1.14.4 darwin(x64-release) started
Optical drive "DVD+R-DL HL-DT-ST DVDRW GX40N RQ00d" opened in OS access mode.
Optical drive "BD-RE PIONEER BD-RW BDR-XS06 1.10d" opened in OS access mode.
Downloading latest SDF to /Users/Bill/Library/MakeMKV ...
Opening files on harddrive at /Volumes/ALIENS_WW
Evaluation version, 30 day(s) out of 30 remaining
Downloading latest HK to /Users/Bill/Library/MakeMKV ...
Saved AACS dump file as /Users/Bill/Library/MakeMKV/MKB_v19_Aliens_F578.tgz
The volume key is unknown for this disc - video can't be decrypted
Failed to open disc

Go to: /Users/Bill/Library/MakeMKV/

Email: MKB_v19_Aliens_F578.tgz to svq@makemkv.com

Just sent the requested file.