"Error: channel_not_found"

[frdmn]

Hello,

i'm working on a Dockerized version of this plugin (https://github.com/frdmn/docker-slack-irc-plugin), but I stuck getting this to work at the moment.

The bot is connecting fine to a key-protected (+k mode) channel, but as soon as I send a message in IRC, the node application logs the following message:

Error: channel_not_found

The corresponding configuration of the channel mapping looks like this:

    channels: {
        '#yeahwhat_admin password': '#admin'
    },

The "#admin" channel exists just fine on slack:

Any ideas?