Doesn't recognise web address of any of my videos

Does this thing actually work at all? I’ve tried importing a few Youtube videos but, every time, it says the address I pasted in doesn’t look like a Youtube address. Here’s one of the addresses I tried:

Hi and thanks for your input. It sounds like you are using the youtube playlist import feature to watch a single youtube video. If your want to watch a single youtube video, simply paste the link into the search bar in the center of the page. I hope that helps!?