1)
Warning: Illegal string offset 'url' in ......\section-header.php on line 586
586.satır
$header_logo['url'] = get_template_directory_uri().'/assets/img/logo.png';
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2)
Warning: count(): Parameter must be an array or an object that implements Countable in ....\metabox\init.php on line 746
746. satır
elseif ( is_array( $meta_box['pages'] ) && count( $meta_box['pages'] === 1 ) )
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3)
Warning: Cannot modify header information - headers already sent by (output started at ....\wp-admin\includes\misc.php on line 1196
1196. satır
header( sprintf( 'Referrer-Policy: %s', $policy ) ); 
