Migrate platform to a newer version of Bonita BPM

I recently migrated my Bonita BPM version to the current version (6.3.2-7.0). When I run the startup bat file and open the site in the web browser, I get a 'webpage not available' message. This makes me believe that the configurations are not correct. Is there a way that I can redo the migration? I want to start from fresh to figure out the issue.