LG-K350N FRP problem

Unlock4samsung Monday, May 20, 2019

I have a problem, I would like to reset the frp. Unfortunately, it is a mistake.

LG 2-3G Tool v9.61
supported models: 1571

Start flashing.
Start reset FRP...
Laf Protocol: 01000004
Model name: LG-K350n
Software verion: K35012c
Android verion: 6.0
Target operator: GLOBAL
Target country: COM
Chipset: mt6735
IMEI1: 357823xxxxxxxxx
IMEI2: 35030xxxxxxxxxx
Detecting write method...
Init write method... done
Init EXT4 ... done
Resetting frp...
Laf flash error: command error
Reset error.
Elapsed: 14 secs. --> (v9.61)

Is there anyone who will help me. I will be very grateful