Update Problem md5sum: WARNING: 1 computed checksum did NOT match

Linux WDMyCloud 3.2.26 #1 SMP Thu Jul 9 11:14:15 PDT 2015 wd-2.4-rel armv7l

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individual files in /usr/share/doc/*/copyright.

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permitted by applicable law.
WDMyCloud:~# cd /DataVolume/shares/Public/
WDMyCloud:/DataVolume/shares/Public# /usr/local/sbin/updateFirmwareFromFile.sh /DataVolume/shares/Public/sq-040500-342-20190805.deb updateFirmwareFromFile.sh:01/19/20 12:27:36:: ( /DataVolume/shares/Public/sq-040500-342-20190805.deb )
updateFirmwareFromFile.sh:01/19/20 12:27:36:upgrade start: /DataVolume/shares/Public/sq-040500-342-20190805.deb
updateFirmwareFromFile.sh:01/19/20 12:27:37:check_size=
updateFirmwareFromFile.sh:01/19/20 12:27:37:version_current=040401112
updateFirmwareFromFile.sh:01/19/20 12:27:37:version_newfile=040500342
updateFirmwareFromFile.sh:01/19/20 12:27:37:package_newfile=sq
updateFirmwareFromFile.sh:01/19/20 12:27:37:master_package_name=sq
updateFirmwareFromFile.sh:01/19/20 12:27:38:master_package_new=sq
updateFirmwareFromFile.sh:01/19/20 12:27:38:update_container=
[ ok ] Stopping periodic command scheduler: cron.
[ ok ] Stopping standby monitor: monitorio.
[ ok ] Stopping temperature monitor: monitorTemperature.
Stopping Twonky MediaServer …
[ ok ] Stopping itunes server: forked-daapd.
[ ok ] Stopping wdphotodbmerger: wdphotodbmerger.
[ ok ] Stopping wdmcserver: wdmcserver.
[ ok ] Stopping Samba daemons: nmbd smbd.
Stopping Netatalk Daemons: afpd.
[ ok ] Stopping upnp nas device: upnpnasd.
[ ok ] Stopping wdnotifier: wdnotifier.
[ ok ] Stopping wdnotifier: wdnotifier.
[ ok ] Stopping NFS kernel daemon: mountd nfsd.
[ ok ] Unexporting directories for NFS kernel daemon…
[ ok ] Stopping NFS common utilities:.
updateFirmwareFromFile.sh:01/19/20 12:27:55:new_upgrade_version=2
updateFirmwareFromFile.sh:01/19/20 12:27:55:current_upgrade_version=2
/tmp/tmp.HUUXBJpzCQ/upgrade-version' -> /CacheVolume/upgrade/upgrade-version’
updateFirmwareFromFile.sh:01/19/20 12:27:56:Newer upgrade scripts in update package, use normal update method
(Reading database … 25551 files and directories currently installed.)
Preparing to replace sq 04.05.00-334 (using …/sq-040500-342-20190805.deb) …
preinst_project-control: begin
/DataVolume/shares/Public
isImage=true
Master package name: sq
sq-preinst: action=upgrade
currentRootDevice=/dev/md1
forked-daapd: no process found
disable lazy init
root: disable lazy init
stopping duplicate md device /dev/md0
Restore raid device: /dev/sda1
Restore raid device: /dev/sda2
Prepare for upgrade pkg install…
mdadm: set /dev/sda1 faulty in /dev/md1
mdadm: hot removed /dev/sda1 from /dev/md1
Preparing FW upgrade image on: “/dev/md0”
preinst: currentRootDevice=/dev/md1
preinst: upgradePath=/mnt/rootfs
preinst: upgradePart=/dev/sda1
preinst: upgradeDevice=/dev/md0
send_update_log=200
Unpacking…
Unpacking replacement sq …
Setting up sq (04.05.00-342) …
postinst_project-control: begin
/DataVolume/shares/Public
root: ## postinst_body ##
root: ## postinst_header ##
postinst: isImage=true
postinst: Master package name: sq
postinst: sq-postinst: action=configure
postinst: currentRootDevice=/dev/md1
postinst: upgradeDevice=/dev/md0
postinst: upgradePart=/dev/sda1
postinst: upgradePath=/mnt/rootfs
root: ## postinst_image ##
Copy image to upgrade device /dev/md0:
blockSize=64k blockCount=31247
Compare checksum
-: FAILED
md5sum: WARNING: 1 computed checksum did NOT match
ok 1
Upgrade failed
mdadm: stopped /dev/md0
mdadm: added /dev/sda1
send_update_log=200

these are putty’s log. something went wrong but i dont understand. Please help me.