To keep the post complete, the logs is as below:
2023-04-29 16:42:36,348 INFO exited: core (exit status 12; not expected)
Apr 29 18:42:36 Error loading config:
Apr 29 18:42:36 [WARNING] Please use the admin panel to make changes to them:
Apr 29 18:42:36 [WARNING] SIGNUPS_ALLOWED, INVITATIONS_ALLOWED, YUBICO_CLIENT_ID, YUBICO_SECRET_KEY
Apr 29 18:42:36 [WARNING] The following environment variables are being overriden by the config.json file.
Apr 29 18:42:36 `YUBICO_SERVER` must be a valid URL and start with 'https://'. Either unset this variable or provide a valid URL.
Apr 29 18:42:39
Apr 29 18:42:39
Apr 29 18:42:39
Apr 29 18:42:39
Apr 29 18:42:39 /--------------------------------------------------------------------\
Apr 29 18:42:39 2023-04-29 16:42:39,355 INFO spawned: 'core' with pid 104
Apr 29 18:42:39 2023-04-29 16:42:39,378 INFO exited: core (exit status 12; not expected)
Apr 29 18:42:39 Error loading config:
Apr 29 18:42:39 [INFO] Using saved config from `/app/data/config.json` for configuration.
Apr 29 18:42:39 [WARNING] Please use the admin panel to make changes to them:
Apr 29 18:42:39 [WARNING] SIGNUPS_ALLOWED, INVITATIONS_ALLOWED, YUBICO_CLIENT_ID, YUBICO_SECRET_KEY
Apr 29 18:42:39 [WARNING] The following environment variables are being overriden by the config.json file.
Apr 29 18:42:39 \--------------------------------------------------------------------/
Apr 29 18:42:39 `YUBICO_SERVER` must be a valid URL and start with 'https://'. Either unset this variable or provide a valid URL.
Apr 29 18:42:39 | Starting Vaultwarden |
Apr 29 18:42:39 | https://github.com/dani-garcia/vaultwarden/discussions or |
Apr 29 18:42:39 | https://github.com/dani-garcia/vaultwarden/issues/new |
Apr 29 18:42:39 | https://vaultwarden.discourse.group/ |
Apr 29 18:42:39 | Report suspected bugs/issues in the software itself at: |
Apr 29 18:42:39 | Send usage/configuration questions or feature requests to: |
Apr 29 18:42:39 | This is an *unofficial* Bitwarden implementation, DO NOT use the |
Apr 29 18:42:39 | official channels to report bugs/features, regardless of client. |