Issue with Caching and CloudFlare CDN

So, I am running the free version of WP Fasted Cache into my website with Cloudflare CDN. If I have the cache activated, one of the pages shows a very old snap in which I have made a couple of changes. I can see that WP Fastest Cache is setting the browser’s TTL to 6 months on my CDN which I think is not good.

Ok, I have almost a half static web page which I do not update a lot but I still need to show the right details to my visitors whenever I need to update it without having to wait for months. I have currently deactivated WP Fasted Cache so I can show the right data into my system.

I tried activating WP Fastest Cache and clearing the cache of my website in addition to purgin the cache of my CDN without success. The visitor is viewing a snapshot generated arround 8th of March 2020 (I was able to see that through the source code of the page generated. I also tried to use different browsers which I have not used to visit the website before but still the old snapshot is shown.

How can I have the WP Fastest Cache activated but being able to purge any cache in order to show the right data into my website?

The page I need help with: [log in to see the link]