There was a new image update 4 weeks ago, which was fixed by @ety001 's post: https://steemit.com/steem/@ety001/the-report-about-0830-website-and-api-unstable-or-0830-api
The hivemind has added a cache layer - so I have updated the hivemind, and here are the steps:
docker pull steemit/hivemind:latest
docker-compose down
docker-compose up -d
docker rename hivemind_hive_1 hivemind
$ curl -m 3 -s --data '{"jsonrpc":"2.0","id":0,"method":"hive.db_head_state","params":{}}' https://api.justyy.com
{"jsonrpc": "2.0", "result": {"db_head_block": 78284269, "db_head_time": "2023-09-19 16:40:30", "db_head_age": 10}, "id": 0}