sm-g531f unlock err

Waiting ADB device… OK
Reading phone info…
Model: SM-G531F
Android version: 5.1.1
Product code: SM-G361FZWABTU
Phone version: G531FXXU1AOG3
PDA version: G531FXXU1AOF7
CSC version:
CSC country code:
CSC sales code:
HW version: MP 0.100
Phone S/N: RV8G70BJ5AX
Modem board:
RF cal date: 20150709
IMEI:
Checking Super user right… true
Reading nv data… OK
Analysing SEC file… OK
Initialization AT RIL… OK
Bypass MSL… error (2)
Done with Samsung Tool PRO v.23.9