Can't install system update help

[volcabore1]

So i just finished downloading the system update for my vivo y53
And tried to install it but won't install
I pressed the install now bottuns many times and restarted my phone 5 times but it is still the same the update wont install what do i do?

 

[hang-the-9]

Contact the service provider, if you got the phone unlocked on your own, contact the phone vendor.