What version of Data Bridge did you use to create the Security Assist pages?
The most recent version is 1.2.0, it looks like this was created using an older version.
uninstall the previous version from the extension manager, then download the newer vession from your account and install it.
after installing the extension in the extension manager, Delete the Dreamweaver Cache file from the users configuration folder:
then Open DW to start the webAssist Installer. If the WebAssist installer does not start, open a php page to force it to launch.
After the WebAssist installer completes, restart DW.
you will need to delete the existing security assist pages and re run the wizard to recreate them.