There could be a few reasons for filters not showing on the storefront, here are some things to check:
The collections associated with the filters may be empty (filters won't appear on the store if there are no products to show).
Let's say your 'Blue' filter is not showing up on the store. You'll need to check that the 'Blue' collection has products in it. You can click on the link in the 'Source' column to go to the collection in your Shopify admin, and check there are products are included.
App not installed
The app may not installed on your theme. You can run the Theme Installer from the Theme Installers link in the sidebar. Here's a guide on how to install the app. If you have already run the Theme Installer but still don't see the app on your theme, please contact our support team, we'll be happy to help with completing the installation.
No filter groups set up
Make sure there are filters set up in the app, here is a guide on setting up the filters.
Save & Update, or jobs still running
After making changes in the app, don't forget to click the 'Save & update' button in the top right, and allow the app some time to complete the update, you can check on the status by clicking on "Jobs" in the sidebar. Some filters may not show on the store until all jobs have completed.
Theme Settings hiding the app
The app may be hidden in the theme settings. Check in your theme settings under 'Filter Menu' - right at the end of the list is the option to temporarily disable the display of the filters.
The sidebar may be disabled, make sure you enable it through your Theme Settings for you theme, this is often found in the 'Collection' section settings.
If you have any additional questions, please contact support through the live chat in the app, or at firstname.lastname@example.org