Media starter edition PHDS packager credential

I have installed the starter edition of Adobe Media server. The certificates that come with the installation are valid for a few more months.

However, I get the following error:

"DRMMetadata generation failed. DME Error: A bad parameter was passed to DME"

Where can I find the Packager credential password associated with "phds_production_packager.pfx" file that comes with the installation.