[Plugin: Types – Custom Fields and Custom Post Types Management] Call to undefined function wpcf_adm

That’s very strange, because the function exists in file embedded/includes/fields.php:

function wpcf_admin_fields_get_groups() {
    $groups = get_posts('numberposts=-1&post_type=wp-types-group&post_status=null');
    if (!empty($groups)) {
        foreach ($groups as $k => $group) {
            $groups[$k] = wpcf_admin_fields_adjust_group($group);
        }
    }
    return $groups;
}

Looks like something is still missing in your plugin installation.

Sorry, that function is just a few lines down that same file:

function wpcf_admin_fields_get_group($group_id) {
    return wpcf_admin_fields_adjust_group(get_post($group_id));
}

You should see it in embedded/includes/fields.php.