If you're upgrading from 1.1.0 or 1.1.1, you must apply one of the hotfixes to install the backup and restore scripts required during the upgrade. Note that this step isn't required if you're upgrading from 1.1.3 or higher.
There are separate hotfixes for 1.1.0 and 1.1.1. Run the script that corresponds to the version you currently have installed.
To run the BDD hotfix: