We have learned so much last year through Vukukhanye ministry. We took a weekend with some of the key members to review and plan for the year 2017. We had some worthy discussions and lots of fun together.
Did you added your own Google API key? Look at the help.
Check in YouTube if the id lyabona belongs to a username. If the user id is correct, check that the channel of the user has list of "favorites". Check the FAQ of the plugin or send error messages to support.