Grav doesn't update existing pages when twig template is changed

Hi All,
I have the following problem with grav. I'm trying to edit the twig code of one of my page tamplates, but after I save the twig file and refresh the website (CTRL+F5), the existing pages that use this tamplate don't change. Only when I make a new page, the updated twig file is used. Is there any way to refresh the whole grav, in order to update the state of all existing pages?

Thanks!

In the terminal, from the root folder, type bin/grav clearcache. If you're only using the Admin screen, then I'm not sure. I assume there's a "Clear Cache" feature somewhere on the Admin screen.

It's on the dashboard, top right.

Thank you very much!