Internal error during update and app install error

Install app xyz.wp76xx_18_07_v.16.update
Install app xyz.wp76xx_18_07_v.16.update
Framework version is compatible
Install app xyz.wp76xx_18_07_v.16.update
Execute 2 tasks
Install application xyz.wp76xx_18_07_v.16.update
/legato/systems/current/bin/update
Process exited with 1
Process output:
Unpacking package: 0%
Unpacking package: 0%
Unpacking package: 1%

Unpacking package: 5% ++

Unpacking package: 99% +++++++++++++++++++++++++++++++++++++++++++++++++
Unpacking package: 100% ++++++++++++++++++++++++++++++++++++++++++++++++++
Unpacking package: 100% ++++++++++++++++++++++++++++++++++++++++++++++++++
Applying update: 0%
FAILED
err>
err> ***Error: Internal error during update. See log for details.
Refresh target
Execute 5 tasks
Refresh linux tools
OK
Framework status
Framework status
Remote process
(( /legato/systems/current/bin/legato status ) || true)
Process exited with 0
OK
Refresh App list
Refresh App list
Remote process
/legato/systems/current/bin/app info
Process exited with 0
OK
Refresh App bindings
Refresh App bindings
Remote process
/legato/systems/current/bin/sdir list --format=json
Process exited with 0
OK
Find App core files
OK

I have try to install app file on Device but it’s not instaling. It have given error same like above.
but my

Please help me