Fatal error: Uncaught Error: Call to undefined function the_field()
in /homepages/29/d584982286/htdocs/stage/wp-content/themes/dt-the7-child-Droneii/header.php on line 56

Call stack:

1. require_once()
   wp-includes/template.php:790
2. load_template()
   wp-includes/template.php:725
3. locate_template()
   wp-includes/general-template.php:48
4. get_header()
   wp-content/themes/dt-the7/archive.php:17
5. include()
   wp-includes/template-loader.php:106
6. require_once()
   wp-blog-header.php:19
7. require()
   index.php:17