There is no internal admin password set. See Installation Guide section on the internal admin for further help.
NOTE: If you lock yourself out of AdminUser during setup activities, never established a password, or have forgotten the password,
See InstallationGuide#InternalAdmin for information on configuring the
internal admin password..
More information on Administrators, and on how to use the AdminGroup is found in the Installation Guide
You can edit this topic to add a description to the AdminGroup