In the case that the checkout doesn't translate after installing the Revy Bundles app, here's how to fix it:

1. Go to Shopify Theme Editor of your store
2. Open the file revy-bundle-script.liquid in the Snippets folder
3. Paste the following code after the file content:
   
   

   <script> window.revyBundleThemeSettings = { locale: '{{ request.locale.iso_code }}' } </script>

4. Save the file