Data Bridge includes CSS Form Builder which has Digital File pro integrated into it.
The problem is being caused by installing the stand alone DFP version.
To correct the error:
Rest the workspace layout:
Go to Window -> Workspace Layout -> Reset '[Your layout Name]'
Uninstall Digital File Pro and Data Bridge.
Delete the Dreamweaver Cache file from the users configuration folder:
common_installation_issues.php
then Reinstall Data Bridge.