Error loading plugins: invalid character '"'

Hi guys.

A novice here thus safe to assume I’m missing something obvious - I’m trying to add authentication to a container which has been running successfully, I follow: Secure Kubo RPC with TLS and HTTP Auth | IPFS Docs

When I add authentication bits:

...
    "Authorizations": {
      "api": {
        "AuthSecret": "basic:hello:world123"
        "AllowedPaths": [
          "/api/v0"
        ]
      }
    }
...
  "Plugins": {
    "Plugins": null
  },
...

then container fails with:

Error: error loading plugins: invalid character ‘"’ after object key:value pair

Everything in the config - plugins bits shown, also - is as was created by container IPFS installer. Suffices I remove Authorizations bits and the same plugins are not complained about and container starts.

What am I missing &| doing wrong?

many thanks.

A , after hello:world123”