Filtering issues

Hello everybody. i have quite a few issues with the wix page. 
 
my site is: 
www.trgovina-krap.com
 
When I return from the product to the store, the filter disappears. Means you need to find the desired item group again.

 
when I check two search filters it says: 
No items matched your search criteria. Try widening your search.

 
is it possible to change this using a code? 
 
if anyone is willing to help certain things on the site i will gladly pay.
 

1 Like