Dear, I check again and I see a problem in DHWC Ajax plugin, Please kindly update DHWC Ajax plugin to latest version 1.3.6 from Codecanyon and check again.
Dear, I check your site and I see that problem because you use Product Categories widget of WooCommerce, that problem will show products in category, not is filter. Please switch to use ‘DHWC Ajax Product Categories Filter widget’ and check your site again.
Dear, Sorry for delay reply, for your questions. you still use default WooCommerce widget Price filter to do it because the default WooCommerce use price slider filter.
