Password required after migration

[GentleHedgehog]

I try to migrate from version 1.6 (Windows) to version 1.9.1 with docker on kubuntu 20.04. Did next steps:

But when I replace default data with my data(docker cp to volume and reload container) I get next error:

[GentleHedgehog]

I found a solution (make my files and dirs similar to default ones):
docker run -it --rm --name gitblit -v gitblit-data:/var/opt/gitblit gitblit/gitblit /bin/bash
chown -R gitblit:gitblit /var/opt/gitblit/etc
chown -R gitblit:gitblit /var/opt/gitblit/srv
chmod -R ug+s ./etc
chmod -R ug+s ./srv

then edit file /var/opt/gitblit/etc/gitblit.properties - add new line: include = gitblit-docker.properties