For backup and restore of SharePoint servers to work properly application aware image processing option has to be enabled in the job properties. For more details refer to the corresponding section of the User Guide. As SharePoint deployments may be spread across several servers make sure to familiarize yourself with the Required Microsoft SharePoint Backup Job Settings section of the User Guide.
To restore the data, it’s improtant to backup the Sharepoint database along with the applications.
Explorer for SharePoint relies on the ability to restore data from SharePoint SQL database, refer to the corresponding section of this guide on best practices to SQL Server restore for details relevant to that process.