Blank Black screen instead of slides


Hello, I really need some urgent help!

My slides appear in the left hand column but only show as a black screen when i click on them!
I’m scared that I have lost my entire presentation and it’s for a university project next week.

This is the link -
Please help,
thank you.


@lucie_marchant Hi, the presentation is displayed properly on our end so the issue is most probably caused by a firewall/adblock setting on your computer/in your browser.

Please make sure to check this post with the suggested steps and let us know if you are still experiencing the same problem after the necessary settings.