Invalid Data 0x80070003 error on Restore-SPSite when restoring a SharePoint 2013 Site Collection

Problem Statement:

When you try to backup a site collection and restore it to the same SharePoint server on another web application, it gives below error:

This error usually occur when you take site collection backup from a server and restore it to another server and both source and target server have different builds of SharePoint 2013 but in the above case, server is same and there must not be build difference. So, what is the reason?

Reason:
The only reason for this problem is the site collection which is being backed up is not upgraded after installation of patches on SharePoint server. When you install any KB update or service pack in SharePoint environment, content databases must be upgraded. 

Resolution:

Following is the power shell command to upgrade content database:

Command: Upgrade-SPContentDatabase <Content DB Name>
Example:   Upgrade-SPContentDatabase WSS_Content

Now, you can take the site collection backup and restore without any hindrance 

That's it folks :)

..::Keep on SharePointing::..