Help: Animation are not showed

Is the player of Lottiefiles.com down?

when I open the following code in a HTML file it does not whoe the animation:

<script src="https://unpkg.com/@lottiefiles/lottie-player@latest/dist/lottie-player.js"></script>
<lottie-player src="https://assets8.lottiefiles.com/packages/lf20_gevQCST4Ny.json"  background="transparent"  speed="1"  style="width: 300px; height: 300px;"  loop controls autoplay></lottie-player>

the code plays fine from my end