Error Querying the server

Hello, I just tried to get this container back up and running after not running it for a few months and I noticed that the backup worked successfully the first time around, but after that it would not connect to the minecraft server container.

> As you can see it generates the first backup successfully on startup, but after that it cannot seem to connect to the server.

```2022-05-10T00:54:26-0400 INFO Repository already initialized
2022-05-10T00:54:26-0400 INFO waiting initial delay of 2m...
2022-05-10T00:56:26-0400 INFO waiting for rcon readiness...
2022-05-10T00:56:26-0400 INFO Command executed successfully rcon-cli save-on
2022-05-10T00:56:26-0400 INFO Command executed successfully rcon-cli save-off
2022-05-10T00:56:27-0400 INFO Command executed successfully rcon-cli save-all flush
2022-05-10T00:56:27-0400 INFO Command executed successfully sync
2022-05-10T00:56:27-0400 INFO Backing up content in /data
2022-05-10T00:56:28-0400 INFO using parent snapshot 2848ceb8
2022-05-10T00:56:28-0400 INFO
2022-05-10T00:56:28-0400 INFO Files: 0 new, 1329 changed, 3173 unmodified
2022-05-10T00:56:28-0400 INFO Dirs: 0 new, 146 changed, 576 unmodified
2022-05-10T00:56:28-0400 INFO Added to the repo: 22.716 MiB
2022-05-10T00:56:28-0400 INFO
2022-05-10T00:56:28-0400 INFO processed 4502 files, 16.455 GiB in 0:00
2022-05-10T00:56:28-0400 INFO snapshot 15cbc603 saved
2022-05-10T00:56:28-0400 INFO Command executed successfully rcon-cli save-on
2022-05-10T00:56:29-0400 ERROR Error querying the server, waiting 5m...
2022-05-10T01:01:29-0400 ERROR Error querying the server, waiting 5m...```

Use the logs in issue #88 as the starting point: compare the successful initial backup with the later “Error querying the server” loop and trace the server-query entry point in the backup container. Confirm the cause with a repeatable restart and backup scenario; the issue names no file or test to run.

Written by the indexing model from the issue text.