Hi @mc_mpz,
There is no PKP software called OPS so I’m not sure which software you installed. But in any case, an admin user account would have been created during the installation process. If you know what email address your friend would have entered for the admin account, you can select the “Forgot your password” link on the user login page and enter the email address, then the password will be reset for you. Or if you want to use the database you can follow the instructions here.
Best,
Amanda Stevens
Public Knowledge Project Team