Error Stage commit failed When Upgrading from 6.5.22 to 7.6.1

When using upgrade wizard to upgrade from 6.5.22 to 7.6.1 it failed in the process 4 of 6 (Upgrade). the error returned is; Error Stage commit failed.

Below is an abstract from the UpgradeWizard.log:

Mon, 29 Feb 2016 15:21:48 -0600 [Upgrader] - Copying upgrade/scripts/post/1_ClearVarDefs.php

Mon, 29 Feb 2016 15:21:48 -0600 [Upgrader] - ERROR: Exception: Unable to create directory: /var/www/vhosts/EBDted.staging.expertbizdev.com/upgrade/scripts/post

When I clock on go to home page I receive "Database failure. Please refer to sugarcrm.log for details."

Has anyone come across this type of issue during an upgrade?

- David