ECONNREFUSED in live system

[Geod24]

May 03 07:33:39 na-001 systemd[1]: Started Stoa: API server for Agora node.
May 03 07:33:42 na-001 docker[394418]:
May 03 07:33:42 na-001 docker[394418]: > stoa@0.0.0 start /stoa/bin
May 03 07:33:42 na-001 docker[394418]: > NODE_ENV=production ts-node src/main.ts "-c" "/stoa/wd/config.yaml"
May 03 07:33:42 na-001 docker[394418]:
May 03 07:33:47 na-001 docker[394418]: [Stoa] 2021-05-03T07:33:47.126Z info Agora endpoint: http://agora_node4:4826
May 03 07:33:47 na-001 docker[394418]: [Stoa] 2021-05-03T07:33:47.127Z info sqlite3 database filename: /stoa/wd/data/database.db
May 03 07:33:48 na-001 docker[394418]: [Stoa] 2021-05-03T07:33:48.985Z error Error: Could not connect to Agora node: Error: connect ECONNREFUSED 172.20.0.2:4826
May 03 07:33:49 na-001 docker[394418]: npm ERR! code ELIFECYCLE
May 03 07:33:49 na-001 docker[394418]: npm ERR! errno 1
May 03 07:33:49 na-001 docker[394418]: npm ERR! stoa@0.0.0 start: `NODE_ENV=production ts-node src/main.ts "-c" "/stoa/wd/config.yaml"`
May 03 07:33:49 na-001 docker[394418]: npm ERR! Exit status 1
May 03 07:33:49 na-001 docker[394418]: npm ERR!
May 03 07:33:49 na-001 docker[394418]: npm ERR! Failed at the stoa@0.0.0 start script.
May 03 07:33:49 na-001 docker[394418]: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
May 03 07:33:49 na-001 docker[394418]:
May 03 07:33:49 na-001 docker[394418]: npm ERR! A complete log of this run can be found in:
May 03 07:33:49 na-001 docker[394418]: npm ERR!     /root/.npm/_logs/2021-05-03T07_33_49_021Z-debug.log
May 03 07:33:50 na-001 docker[394418]:

I believe this might come from bosagora/agora#1897 although I have not verified.