Hi Ricky,
I'm glad you got your issue sorted (thanks Spikey)
I can also see that you have submitted your exercise. It seems that something is wrong on the Vimeo side of things.
Could you check that all the privacy settings allow the video to be accessed outside of their platform?
This is the what I see.
I'm just mentioning it here because if I comment on the exercise page, it will close it and you'll have to resubmit.
But if I mention it here outside of the submission page, there's a chance we can get it working without that.
Anyway, let me know if you discover what the Vimeo issue might be.