SM-J727T unlocking error ?

Operation: Unlock
Selected model: SM-J727T
Software version: 33.2

Checking Login and Password... OK
Ballance: 33 crd.
You have 33 credit(s) left. This operation takes 5 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-J727T
Android version: 7.0
PDA version: J727TUVS3ARC1
CSC version: J727TTMB3ARC1
Phone version: J727TUVS3ARC1
Product code: SM2J727TZDATMB
CSC country code: USA
CSC sales code: TMB
Phone SN: R28K41TMVHR
IMEI: 355619087***
HW version: REV0.7
RF cal date: 20180418
Chip name: EXYNOS7870
Modem board: SHANNON315
Security patch: 2018-03-01
Boot Warranty bit: 0
Searching Samsung diag port... detected COM17
Reading phone info... OK
CP version: J727TUVS3ARC1
CP build: Mar 5 2018 19:31:23
Reading data from phone... error (1)
Done with Samsung Tool PRO v.33.2