J120A Imei repair Access violation at address 00427E43

Hi, i'm trying to repair an imei with z3x last version and gives to me this error, now with 31.5 the same error. The smartphone have bit 3.

Operation: Repair
Selected model: SM-J120A
Software version: 31.5

If you are looking for 'Repair Network' function then you should use 'Patch Certificate'

Waiting ADB device... OK
Reading phone info...
Model: SAMSUNG-SM-J120A
Android version: 6.0.1
PDA version: J120AUCS3AQE1
CSC version: J120AATT3AQE1
Phone version: J120AUCS3AQE1
Product code: SM2J120AZWCATT
CSC country code: USA
CSC sales code: ATT
Phone SN: R58J23569XJ
IMEI: 357073080798479
HW version: REV0.3
RF cal date: 20170215
Chip name: EXYNOS3475
Modem board: SHANNON308
Security patch: 2017-05-01
Boot Warranty bit: 0
Checking Super user right... true
Reading NV data... OK
Checking NV data... OK
Reading data... OK
Detecting MODEM... OK
Reading MODEM... OK
Calculating...
Exception: Access violation at address 00427E43 in module 'SamsungToolPRO.exe'. Read of address 7DA10000
Done with Samsung Tool PRO v.31.5