Don't show the map.

Hello santiagobf!

What does $mapa contain in this case? Based on the code you posted it seems to be empty.

The correct way is to call the_leaflet_field(); with the field name as only argument if you want to render the map that is attached to the current page/post. Like this: the_leaflet_field( 'field_name' ); or optionally, if you want to render a map that is attached to any other post: the_leaflet_field( 'field_name', $id );, where $id contains the post-id of a post that has a leaflet map attached.

Please verify that $mapa is a string representing the correct field name and that the page currently being rendered is a post with an id.

global $post;
echo $post->ID;