During the training, the account access should have been configured, set up and validated. Something seems to have changed.
When the FFDP Order Tool is started, it tries to connect to GTxcel Dashboard. An error message is raised if there is a blockage. I assume you're not seeing any errors, thus network connection should be OK. From there, the list of publishers is automatically populated in the FFDP Order Tool. Likewise the list of titles is also automatically populated.
I think you'll need to call the support team to look at your configuration.