Can’t upload video files

Hi
I am trying to upload a video to the plugin that will be available for download.
The video is about 400 MB.

I just select the video file.
And I can see the green bar fills up slowly.
But after I click publish it’s gone and the file hasn’t been added to it.
When I try adding it in the “Add Media” section of wordpress, it says “Http Error”

There is another video file i compressed that I was able to upload just fine. That one is sized 90 Mb.
Both video files were originally 200~400 MB so I had to compress them using: https://pickfrom.net

Anyone can help me?
So I can upload another larger video file to cloud.

The page I need help with: [log in to see the link]