need help Mar-lx2j downgrage problem

[ahrbil]

i m trying to bypass frp but inm getting this error
Checking fastboot device.....OK
Reading info.....OK
Device Model: MAR-LX2J
Device Firmware: :MAR-L22J 9.1.0.300(C635E4R1P5)
Device FB Lock: LOCKED
Device USER Lock: LOCKED
Device Lock: locked
Checking needed files.....OK
Writing image 1.....OK
Writing image 2.....OK
Writing image 3.....OK
Switching to upgrade mode.....1OK
Waiting for Upgrade Mode port.....OK
Connecting to device.....OK
Start processing file [C:/Users/bism Allah/Downloads/FTP_File_2/downloads/Marie-L22J 9.1.0.215(C635E4R2P1)_Firmware_9.0.0_r3_EMUI9.1.0_ 05015RTG/Marie-L22J 9.1.0.215(C635E4R2P1)_Firmware_9.0.0_r3_EMUI9.1.0_ 05015RTG/Software/dload/update_sd_base/UPDATE.APP] 4,43 GB:
Firmware version: Marie-LGRP2-OVS 9.1.0.210
Flashing [sha256rsa.img].....OK
Flashing [crc.img].....OK
Flashing [base_verlist.img].....OK
Flashing [base_ver.img].....Failed: Write failed
Operation {Flash APP Firmware} ID: 98763CC7F70CDECB
Elapsed time 06:23 -- Version 2.9

any solution??thanks in advace