Unexpected error with a video from Vimeo?!

Hi,

I inserted a video from Vimeo but it says this:
!

and this is the code for it <iframe src="https://player.vimeo.com/video/129539454" width="640" height="360" frameborder="0" allow="autoplay; fullscreen" allowfullscreen></iframe>
<p><a href="https://vimeo.com/129539454">EDF Energy Virtual Reality Sustainability Experience</a> from <a href="https://vimeo.com/atticusdigital">Atticus Digital</a> on <a href="https://vimeo.com">Vimeo</a>.</p>

It's a video from a company but should be available to use... Any suggestions?

Best,

Anna