hostname of the 1st certificate does not match 'kid'

[AleksCee]

I build a BOT using the "webex-node-bot-framework" and it works fine with my private account. I change the bot key to the bot I created for the corporate space and the framework starts up OK. Websocket connections are OK. But when the first message is sent to the bot, the app panics with the error "Hostname of 1st certificate does not match 'kid'" - I don't understand why this happens. What are the differences between using websocket in "public" or "corporate" spaces? Can a company use other certificates? Isn't the websocket connection established only to the Webex network? How can I fix this without security issues?
Thanks, Alex