Restore database, no https access

Hi everyone,
I have backup my full syno on C2 and I’m now trying to get back my bitwarden docker.
I installed a new instance, removed the default files in the data directory and restore old files.

I can connect to HTTP port and use my old account/password. It tries to use a vault functionality that the browser refuse.
When I ,try to connect on HTTPS port, the browser indocate an error, saying the site ends the connection.

What should I do ?

Thanks to everyone !