Hello @twelve25,
Thanks for writing in!
Please be advised that the ID for example, listings-section, should be added to the section and not to the row element.
With this setup, it is much better to use #-x-section-5 in your link.
Meanwhile, the JS error is because you are using an older version of the X theme. X Theme 7.2.3 is now available in automatic updates! This release contains fixes for several issues, like you have mentioned above, so be sure to check out the changelog (https://theme.co/changelog/). Please do update to the latest version. After doing the updates, always remember to clear all caches when updating so that the code from the latest release is always in use. This will help you to avoid any potential errors.
We would love to know if this has worked for you. Thank you.