Same exact thing happened for another couple who went by Olga Sunrise on the Hub. They had a lot of great content and I was subbed to their channel. One day I signed on and all of their content was mysteriously gone, as if they had never existed at all. There are some remnants floating around on various sources, but the overall experience is perplexing that there's no heads-up or explanation. They just disappear, never to be seen or heard of again.