How to: Display ACF [fields] on Custom Post Types Utilising WordPress ‘Hooks’? [closed]

Firstly assign your Custom fields group to the post type you are trying to show them in, then call them in that post types template like you have done already.
For the template part, you need to copy single.php from the Parent theme.

EDIT:

For the cutomizr theme you have to make changes in the child theme in the file

customizr\templates\parts\content\singular\post_content.php

just place

    <?php $mymetafield = get_field( "test" ); ?>
    <p><?php echo $mymetafield; ?></p>

anywhere you want your metafields to display.