You are trying to upload a video to the site that you have taken yourself, stored on your hard drive?
The problem with that is I have to download it and save it on my computer here. I would not do that! Your video makes my computer vulnerable to a hitch-hiker virus!
Can you up load to a 3rd party site that could act as the host to store the video then send a like for all to view it? The way everyone used to use “Photobucket”?