g925w8 unlock error

Checking hash file… OK
Waiting ADB device… OK
Reading phone info…
Model: SM-G925W8
Android version: 5.1.1
Product code: SM-G925WZKAGLW
Phone version: G925W8VLU3BOK1
PDA version: G925W8VLU3BOK1
CSC version: G925W8OYA3BOK1
CSC country code: Canada
CSC sales code: GLW
HW version: REV0.1
Phone S/N: R58G71GB7VN
Modem board: SHANNON333
RF cal date: 20150724
IMEI:
Checking Super user right… true
Initialization AT RIL… OK
Check version… OK
Initializating zTool… error (0)
Done with Samsung Tool PRO v.24.1