Postgres error database does not exist

[RancidDrizzt]

I use wallabag in docker.
After an recent update the connection to the existing and before used postgresql database can't be established any more.
The error message is just "database "usr_wallabag" does not exist", but usr_wallabag is the user not the database name.
The relevant environment parameters are configured as followed:
symfony__env__database_name = db_wallabag
symfony__env__database_user = usr_wallabag

The log-file and a screenshot of the environment parameters are attached.

Please let me know if you need any additional information.

_wallabag_logs.txt