New install - zero w 2 - reset password

[FireflyJar]

I downloaded emonSD-21Jul21 imaged and created a SDcard to install in Rpi zero w 2. At the time of created imaged I did modify hostname, SSH and Wifi settings, using [CTRL][SHIFT] [X] in Raspberry Pi Imager.
The Pi zero 2 booted fine and I can log in via SSH and see the webpage but the emoncms webpage is asking for a login/password which is not mentioned in user guide https://guide.openenergymonitor.org/setup/local/ .
That is first problem, second problem is the command to reset password does not work,
$ php /opt/emoncms/modules/usefulscripts/resetpassword.php
I looked and see it there but it responds with
' -bash: resetpassword: command not found '