The form action is an HTTPS page. You need to make sure that you have enabled HTTPS for LWP. There are notes on how to do this in the LWP documentation but you will need Crypt::SSLeay to be installed and running. This uses OpenSSL to provide the SSL functionality.

If you are trying to install this on Windows using PPM and Activestate Perl then you will need to use the repositories hosted at the university of winnipeg http://theoryx5.uwinnipeg.ca