My admin account has been disabled. I ran in this problem while trying to transfert a file via my iPhone while not beeing logged in the Nexcloud app. Too many attemps.
You’ll need to invoke a CLI in the docker container. Typically that would be done by docker exec -it -u www-data containername /bin/bash but I don’t know about on Unraid.
Then you will need to run the occ command to enable the account, change password, or whatever else needs to be done.