How to put musescore on YouTube

The well designed and simple to use 'My Scores' page, with its easy to use 'Send to YouYube' button seems to be no longer available to me. Instead I do not get my scores when using the 'My Scores' facility. The 'Send to YouTube' facility is now supposedly under a three pip configuration by the side of a miniature page on the initial page I reach, but this doesn't seem to work. How do I now send my scores to my YouTube account. Thanking you in anticipation of a step by step reply.

Anthony Price