J327p Unlocking Error

Operation: Unlock
Selected model: SM-J327P
Software version: 31.5.1

Waiting ADB device... OK
Reading phone info...
Model: SM-J327P
Android version: 6.0.1
PDA version: J327PVPS3ARC1
CSC version: J327PSPT3ARC1
Phone version: J327PVPS3ARC1
Product code: Not Active
CSC country code: USA
CSC sales code: XAS
Phone SN: 00000000000
IMEI: 352510086328657
HW version: J327P.03
RF cal date: 2017.09.14
Chip name: MSM8937
Modem board: MSM8917
Security patch: 2018-03-01
Boot Warranty bit: 1
Writing AT RIL... OK
Initialization AT RIL... root required
Checking Super user right... true
Initialization AT RIL... OK
Unlocking... error

Done with Samsung Tool PRO v.31.5.1