Unauthorized access error while trying to create a new user

Hi influxDB community,
i am new to InfluxDB and just installed it sucessfully on my Raspberry Pi 4 running Ubuntu Server. I now want to create a user so i can log in into to the web gui. When i try to create a user with this command: “influx user create -n testuser -o test-org -p testpassword” i get this error: Error: Unauthorized access. See ‘influx user create -h’ for help. I am using the newest 2.0 version available. Any ideas why this error occurs?
Thanks for the help!

add “-t token”

like for passwd update

/usr/bin/docker container exec dck_influxdb influx user my_user password -t your_admin_token