( ! ) Fatal error: Uncaught TypeError: ltrim(): Argument #1 ($string) must be of type string, WP_Error given in C:\wamp64\kb-dl\wp-includes\formatting.php on line 4486
( ! ) TypeError: ltrim(): Argument #1 ($string) must be of type string, WP_Error given in C:\wamp64\kb-dl\wp-includes\formatting.php on line 4486
Call Stack
#	Time	Memory	Function	Location
1	0.0002	377808	{main}( )	...\index.php:0
2	0.0004	378168	require( 'C:\wamp64\kb-dl\wp-blog-header.php )	...\index.php:17
3	0.4402	10420336	require_once( 'C:\wamp64\kb-dl\wp-includes\template-loader.php )	...\wp-blog-header.php:19
4	0.4402	10420336	do_action( $hook_name = 'template_redirect' )	...\template-loader.php:13
5	0.4402	10420712	WP_Hook->do_action( $args = [0 => ''] )	...\plugin.php:517
6	0.4402	10420712	WP_Hook->apply_filters( $value = '', $args = [0 => ''] )	...\class-wp-hook.php:348
7	0.4405	10421936	manual_doc_redirect_post( '' )	...\class-wp-hook.php:324
8	0.4410	10425208	esc_url( $url = class WP_Error { public $errors = ['invalid_term' => [...]]; public $error_data = []; protected $additional_data = [] }, $protocols = ???, $_context = ??? )	...\hook.php:717
9	0.4410	10425208	ltrim( $string = class WP_Error { public $errors = ['invalid_term' => [...]]; public $error_data = []; protected $additional_data = [] } )	...\formatting.php:4486