Warning: Attempt to read property “ID” on sitemap

Dear @ctocanier,

Do you have a travelers map shortcode on this page? Or anywhere on your constant layout (header/footer)?

After looking at the line mentioned in the error, it seams to be a shortcode with the parameters this_post or centered_on_this.

I can add a variable check in the next update, but in the meantime you could find where the shortcode is and remove it from this page if not necessary.

I see, do you have the ability to add some javascript code to your website?

If you can, then you can add the code below to your homepage:

<script>
document.addEventListener('cttm_map_loaded', function (e) {
  for (let i = 0; i < cttm_map.length; i++) {
    cttm_map[i].setView([45.30824,5.85554], 10);
  }
}, false);
</script>

This will set the center of the on “La dent de Crolles”, (it’s the example on my documentation), you can play with the latitude/longitude ([45.30824,5.85554]) and zoom level (10) to get what you want.

Another way would be to add a category or a tag to all the metropolitan posts and pages, so you can filter the map with this category/tag (but the other would disappear)

I just thought of something else, you could add the post_id=7 parameter on the shortcode, 7 being the id of your homepage (it could be something else, you can find how to find the ID here. That way, even if we are not on the homepage, it would be centered on it.

I hope this can fix your issue