Hello, @chafike,
1- I have checked your site shop page filters work fine there is no issue as you can see in this video: https://streamable.com/ky6x36 it is working just fine.
2- The filter that appears on the shop page also, set by using our theme widgets as you can see in the image: https://postimg.cc/3ySDmr9K and https://postimg.cc/ctYKpRWH
Please check back to your site after clearing the browser cache.
Regards 8Themes Team.