Contents in WMP Gone, Disappeared, Vamoosed

[Lost In Space]

Hello, everyone. This morning my WMP was fine. I even played some music on it. However, this evening when I opened it up, all the content was gone, had disappeared, had vamoosed. But my first thought was to look in the Event log, but I didn't get anywhere by doing that. But eventually, I started to search information on YouTube, and I did find this.

But like the robot used to say in the old Lost in Space television show, "That does not compute." Therefore is there anyone who can help me with this?