samsung G960f unlock error

Checking Login and Password... OK
Ballance: 45 crd.
You have 45 credit(s) left. This operation takes 10 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G960F
Android version: 8.0.0
PDA version: G960FXXU1BRE6
CSC version: G960FOXM1BRE3
Phone version: G960FXXU1BRE3
Product code: SM-G960FZKDMID
CSC country code: Iraq
CSC sales code: MID
Phone SN: R58K33H8QGE
IMEI: 357171092XXXXXX
HW version: MP 0.900
RF cal date: 20180315
Chip name: EXYNOS9810
Modem board: SHANNON360
Security patch: 2018-05-01
Boot Warranty bit: 0
Searching server... OK
Checking server answer... OK
Initialization zTool... error (0.8)

Done with Samsung Tool PRO v.33.0