Hello,

1. As the issue is the same with the default WordPress theme which clears that the issue is not from our theme.

Sorry, but we could not help you with this because this is out of our theme support scope.

2. I have visited your website and the filters are displayed.

Screenshot for Clarification: https://gyazo.com/babdba032955def13ff65a5b01a905c3

Best Regards.