mate 10 lite frp error

2018-09-28 11:23:58.361 Erase FRP start
2018-09-28 11:23:58.530 Connecting to server...
2018-09-28 11:23:58.818 Connected!
2018-09-28 11:23:59.683 Reading phone info...
2018-09-28 11:24:00.141 Read phone info success!
Model: RNE-L21
MEID: 00000000000000
pESN: 00000000
IMEI: 868344039938322
Firmware ver.: RNE-L21 8.0.0.334(C432
SN: FFY5T18109018057


2018-09-28 11:24:00.200 Phone info data backup saved to file C:\Users\service-pc\Desktop\HDE_248_2\Backup\20180928_112400_000000 00000000.BAK

2018-09-28 11:24:00.203 Reading Certify data...
2018-09-28 11:24:00.357 Reading Certify data success!
2018-09-28 11:24:00.363 Signing Certify data...
2018-09-28 11:24:05.625 Erase FRP fail!

Fail write TCP buffer!




any solution?