Is there a way to having a file back?

Hi, here is my problem:

I'm fan of a game called Jalopy, and long story short, the developer of this game and the publisher got a disagreement, and the publisher removed every access from the game dev to its own game.

[link removed]

Then, the game dev launched a new game a year after this (Landlord's Super), and now he is working on it's new game.

Now, I wanted to discover the past of this game, and I founded a lot of things through internet and while reading the dev logs.

But on the internet, on a couple of forums, I founded this link that the dev gave to people in order to test the demo of this game.

On this demo, there was a lot of cool features and old stuff that disseapear with the updated.

This game was released in 2016 (and I discovered it this year too), and the test version was in 2015, the game was called HAC.

You can still find image of this demo with GIFs that made the game dev.

And my problem is that the download link for this game is broken. (It doesn't says that it got delete, so weird)..

Here it is:

[link removed]

I would LOVE to play it and share it on the dev's discord, so if anyone is able to get this file back, it would be very cool. (also, the dev told me that he lost the file too)

Bye ^^.