g955w unlock fail

hi
here is log

Checking Login and Password... OK
Ballance: 45 crd.
You have 45 credit(s) left. This operation takes 5 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G955W
Android version: 9
PDA version: G955WVLU5CSD5
CSC version: G955WOYA5CSD5
Phone version: G955WVLU5CSD5
Product code: SM-G955WZKARWC
CSC country code: Canada
CSC sales code: RWC
Phone SN: R28J43X92XF
IMEI: 356426080750240
HW version: REV1.0
RF cal date: 2017.04.28
Chip name: MSM8998
Modem board: MSM8998
Security patch: 2019-04-01
Boot Warranty bit: 0
SIM State: NETWORK_LOCKED
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Searching Samsung diag port... detected COM36
Reading phone info... OK
Reading data from phone... OK
Searching Ramdump interface... COM7 detected
Reading data from phone... OK
Calculating... OK
Searching server... OK
Waiting for server answer... error (1)

Done with Samsung Tool PRO v.36.8