There are a couple issues with the Teleboy channel that I can see without testing it.
First, the code is based on the old plugin framework which does not work with many (any?) cilent apps. It will need to be updated to the most recent framework to function properly across the wide range of Plex apps currently available. You can read up a little on the newer framework in the documentation, as well as read some helpful articles in the knowledge base. Looking at other channels is a great place to start when updating old code, or starting from scratch.
Second, the old channel is making use of a WebKit via the Site Configuration file. Support for Webkit-based channels in Plex has been removed due to the massive PITA that they proved to be. In order to get this channel functional again, you'll need to find another way to access the video stream.