How to fix unable to start restoring your message history backup in whatsapp

How to fix unable to start restoring your message history backup in whatsapp-I try to reinstall the whatsapp but backup isn't working it shows the following error:
Unable to start restoring your message history backup.Please check that you are connected to the internet and try again-Messages will be lost.Are you sure you don't want to restore your message history from backup,this method is working on all android devices.

Solution:
1.Check your internet connections wifi and data connections.

2.Install the latest version of whatsapp with compatible version.

3.Check your date and time settings.

All above conditions are correct your backup is done in a successful way.