Cache files not created on Webempresa
Webempresa has a custom plugin - WE Varnish Cache - which deliberately disables the cache generation of WP Rocket. This is because they are caching the pages using Varnish on their server instead, when their Magic Cache is enabled. All the other features of WP Rocket will still work as expected. Activate the Varnish add-on in WP Rocket to synchronize cache purging.