API on 1317 port returns 'Not implemented' response for all requests

[AlexAkulov]

Hi guys! I've started ethermint v0.20.0 tag it works fine in Metamask.
Now I'm trying to connect some things like ethermint-explorer and https://github.com/luniehq/lunie-light which are using api port 1317.
I have enabled it in app.toml but any requests return Not implemented response.
Whats wrong and how to fix it?

curl "http://localhost:1317/blocks/latest"
{
  "code": 12,
  "message": "Not Implemented",
  "details": [
  ]
}

[AlexAkulov]

I figured out that these tools is not developed for a long time and use legacy api that is not supported more.