When you load the font, it is trying to load the font from
But your Hype document resources, including the font, was uploaded to something like:
So you could either update your custom font in Hype to reference the full URL of wherever your ttf + other font files are upload to your server, or you could switch your Hype embed to use the ‘iframe’ method when embedding it.
An example of the full URL would be:
http://jordan-jeandon.fr/wp-content/uploads/hypeanimations/2/jordan-jeandon.hyperesources/Aileron-Heavy.ttf (but check that your files are actually there first)
You can do that from the Hype animations dashboard by selecting iframe instead of ‘div’ and then clicking ‘update’:
That will load the Hype document from within an iframe and the font references will work irrespective of the page you load the Hype document on.