Warning: Illegal string offset 'home_slider' in ...
What to do if you get this:
Warning: Illegal string offset 'home_slider' in /home/content/html/wp-content/themes/kingdom/header.php on line 145
Warning: Illegal string offset 'home_slider' in /home/content/html/wp-content/themes/kingdom/header.php on line 183
Those are just warnings, not errors and they will not affect your website functionality.
Please disable WP Debug and display_errors (please ask your webhost to do this for you if you don't know how or the changes are not seen).
In wp-config.php:
ini_set('log_errors','On');
ini_set('display_errors','Off');
ini_set('error_reporting', E_ALL );
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);
define('WP_DEBUG', false);