How to setup Squirrel.window to check updates on electron release server - Electron

I am trying to update my electron app built with electron-forge(and Squirrel.Windows as maker) using Electron-release-server.
What I was unable to set properly is the update feed. Actually the part of code that check for updates is the following:

const server = 'http://185.25.204.245:1337';
const platform = 'win' + process.arch.substr(1);
const feed = `$server/update/win64/$globals.app.getVersion()/beta/RELEASES`;
console.log(feed);
autoUpdater.setFeedURL(feed);

autoUpdater.on('error', err => console.log(err));
autoUpdater.on('checking-for-update', () => console.log('checking-for-update'));
autoUpdater.on('update-available', () => console.log('update-available'));
autoUpdater.on('update-not-available', () => console.log('update-not-available'));

autoUpdater.checkForUpdates();

/*setInterval(() =>
autoUpdater.checkForUpdates()
, 60000);*/

autoUpdater.on('update-downloaded', (event, releaseNotes, releaseName) =>
const dialogOpts =
type: 'info',
buttons: ['Restart', 'Later'],
title: 'Application Update',
message: process.platform === 'win32' ? releaseNotes : releaseName,
detail: 'A new version has been downloaded. Restart the application to apply the updates.'


dialog.showMessageBox(dialogOpts, (response) =>
if (response === 0) autoUpdater.quitAndInstall()
)
);

autoUpdater.on('error', message =>
console.error('There was a problem updating the application')
console.error(message)
)


Here the console log when I launch the app: https://hastebin.com/witogagepi.sql
If you try to open the feed url it actually works. Any suggestion on to how to properly set it?

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