Failed to connect. Homeserver configuration found with *** appears unusable.

Hi, folks! I've already create my own server for Matrix, and now I'm trying to set up Cinny for anyone can use my server from a browser.

But Cinny writes me:

Failed to connect. Homeserver configuration found with my homeserver name appears unusable.

When I'm trying to choose my server from a list.

Here's the config file of Cinny:

    
{
  "defaultHomeserver": 2,
  "homeserverList": [
    "my.server.org",
    "matrix.org"
  ],
  "allowCustomHomeservers": true,

  "featuredCommunities": {
    "openAsDefault": false,
    "spaces": [
      "#cinny-space:matrix.org",
      "#community:matrix.org"
    ],
    "rooms": [
      "#cinny:matrix.org"
    ],
    "servers": ["my.server.org", "matrix.org"]
  },

  "hashRouter": {
    "enabled": true,
    "basename": "/"
  }
}

  

But when I'm trying to use Cinny from it website - everything works fine. But when I'm trying to use this from my self-hosted variant - I gets this error.

So, what do I do wrong, people? 🤔