WP Fastest cache not cache`ing my pages

Good Day, we just completed building our website and would like to launch, i have downloaded and installed WP Fastest Cache and done the setup and the pre-load, and i dont pick up that my pages are being cached as when i check HTML code at bottom of the page there is nothing stating WP Fastest Cache has cached my pages Please can support assist as we would like to go premium but need WP Fastest Cache to work first.

Site is built on WordPress via Elementor and all is updated and shows WP Fastest Cache as compatible.