Replied by Administrator on topic 2.3.0 wont play youtube videos
The 2.3.0 version uses FLASH in Desktops to play the videos. But, YouTube have stopped supporting their FLASH API. The solution is to upgrade to our latest PRO version.
Also, make sure you're using the PRO version in the same domain for which you purchased the License key. If not, you will have to purchase a separate key for your new website.