I visited your URL & this is what I got:
I downloaded the first variant on the VDH menu. Here's my results:
It played fine in VLC. Despite what the Windows properties claimed, this was a 1920x1080 video.
At first, I thought there was no audio. But cranking my volume up to what is usually too loud finally did reveal that there was audio throughout this clip. It was in a language I did not understand. I'm guessing it might have been Portuguese. In any case, this appears to be an advertisement promoting the Panda web site.
I am using Windows 7 64-bit, Firefox 104.0 64-bit, licensed VDH 7.6.3a6, CoApp 1.6.3 beta, VLC 3.0.16 Vetinari. You should always include similar information for your system in any problem report you post here.
Before you respond to me, which you will do via Reply all, NOT Reply to author, you should read this:
It is very important that you follow the advice in that thread. My post here contains 3 images. You definitely DO NOT WANT to be quoting those images into your reply. So be sure you remove the stealth quoted material before you post again.