SCV38 unlock problem?

UNLOCK INSTRUCTIONS:
Reading codes using sever:
1. Power on the phone.
2. Tap 7 times on 'Build number' in 'Settings'-'About phone'-'Software information'
to enable 'Developer options',
go to 'Settings'-'Developer options' and enable 'USB debugging'.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Select device in ADB settings.
5. Press 'Read Codes via server' button, write your login and password in window if it will appear.
(Login and password will be saved as default after first input and can be changed in settings.)

Operation: Read Codes via Server
Selected model: SCV38
Software version: 33.2

Checking Login and Password... OK
Ballance: 40 crd.
You have 40 credit(s) left. This operation takes 10 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SCV38
Android version: 8.0.0
PDA version: SCV38KDU1ARCD
CSC version: SC02KDCM1ARD3
Phone version: SCV38KDU1ARCD
Product code: SM-G960JZPAKDI
CSC country code: JP
CSC sales code: DCM
Phone SN: R58K42KADZY
IMEI: 354631090500640
HW version: G960JPN.10
RF cal date: 2018.04.17
Chip name: SDM845
Modem board: SDM845
Security patch: 2018-04-01
Boot Warranty bit: 0
Searching Samsung diag port... detected COM1126
Reading phone info... OK
Reading data from phone... error (1), skip
Rebooting phone... OK
Waiting ADB device... OK
Waiting for device to become ready... OK
Initialization zTool... OK
Running zTool, please wait...
Start... OK
Initialization... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data from phone... OK
Searching Ramdump interface... COM736 detected
Reading data from phone... OK
Calculating... OK
Searching server... OK
Waiting for server answer... OK
Freeze code: 68371519
NET lock: 00000000
SUB lock: 00000000
SP lock: 00000000
CP lock: 00000000
For check lock status: *#7465625#
Done with Samsung Tool PRO v.33.2

i entered unlock code but again ask code entered code again ask unlock code?
what i do?