External Data Automatic Refresh

Hello everybody,

The reason why Im writing here could be pretty basic but still, since im starting to use Power BI, I would use some help about it.

I made a pretty basic inform with Power BI Desktop, and I connected it with an external web URL (Chilean Central Bank) since I wanna know some finnancial indicators (currencies, commodities and stuff) that changes every minute/hour/day.
The link works, and everytime I push the refresh buttom, whether at Power BI Online or Deskptop, it changes the indicators in the inform, so everything's good.

However, I also tried to program an automatic refresh of these indicatores, setting the options through Power BI Online: selecting an anonymous auth metod and none privacy level, since is a public web page. I also set 2 different hours for the automatic refresh, but in any of those 2 attemps, the refresing process dosnt work and I get the following message: https://pasteboard.co/IKuqHMv.png

But, again, if i try to refresh the data manually, it works perfects.

Does anyone know why the automatic refresh isnt work? Am I missing a step if im trying to catch and refresh data from a public web page?

Thanks in advance for your help.
Best Regards,
Cristóbal