WP Fastest Cache

Hello,

As soon as activate this option in the plug-in :
Cache System : Enable

My website shifts, the whole theme of the website changes completely, could you help me with this issue? You can follow this link to the view the screenshots of what is actually happens when I activate the cache system option.

https://drive.google.com/drive/u/1/folders/1-mzTk8sLNWdhQ9LmGzDhVbPRD19A9oBh

My website is on WP.

Regards,
Roy

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