dump1090 version doesn’t matter, you used the most current piaware image …
roystonsleddog ADS-B Feeder Statistics - FlightAware
It would seem you claimed a new station instead of using the old key.
Easiest to remove power and then set the old feeder-id on the sd-card:
For Beginners - How to Get Back Existing Station Number in A Fresh Install - #8 by abcd567
SSH (just for completeness: For Beginners - How-to SSH to RPi - Setup Putty in Windows)
SSH is also enabled on the sd-card, so if you are gonna use it you might want to enable it while you set the feeder-id.
In that case it’s best to also change the password.
(Once you’re connected via ssh, the feeder-id can be changed like this: For Beginners - How to Get Back Existing Station Number in A Fresh Install - #6 by abcd567 )