advanced-custom-fields-pro/acf.php

WP_Error Object
(
    [errors] => Array
        (
            [plugin_not_found] => Array
                (
                    [0] => Plugin file does not exist.
                )

        )

    [error_data] => Array
        (
        )

    [additional_data:protected] => Array
        (
        )

)

Error: Call to undefined function get_field() in /var/www/deb-test/public/content/themes/publica/header.php:7
Stack trace:
#0 /var/www/deb-test/public/pddm/wp-includes/template.php(810): require_once()
#1 /var/www/deb-test/public/pddm/wp-includes/template.php(745): load_template()
#2 /var/www/deb-test/public/pddm/wp-includes/general-template.php(48): locate_template()
#3 /var/www/deb-test/public/content/themes/publica/template-with-sidenav.php(6): get_header()
#4 /var/www/deb-test/public/pddm/wp-includes/template-loader.php(106): include('...')
#5 /var/www/deb-test/public/pddm/wp-blog-header.php(19): require_once('...')
#6 /var/www/deb-test/public/index.php(14): require('...')
#7 {main}