Fatal error: Uncaught Error: Cannot use object of type WP_Error as array in /home/hnkw/www/doc/wp-content/plugins/hgb_output/hgb_output.php:192
Stack trace:
#0 /home/hnkw/www/doc/wp-includes/class-wp-hook.php(303): hgb_change_title_parts(Array)
#1 /home/hnkw/www/doc/wp-includes/plugin.php(189): WP_Hook->apply_filters(Array, Array)
#2 /home/hnkw/www/doc/wp-includes/general-template.php(1238): apply_filters('document_title_...', Array)
#3 /home/hnkw/www/doc/wp-includes/general-template.php(1267): wp_get_document_title()
#4 /home/hnkw/www/doc/wp-includes/class-wp-hook.php(303): _wp_render_title_tag('')
#5 /home/hnkw/www/doc/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters('', Array)
#6 /home/hnkw/www/doc/wp-includes/plugin.php(470): WP_Hook->do_action(Array)
#7 /home/hnkw/www/doc/wp-includes/general-template.php(3015): do_action('wp_head')
#8 /home/hnkw/www/doc/wp-content/themes/hinokiya/header.php(25): wp_head()
#9 /home/hnkw/www/doc/wp-includes/template.php(770): require_once('/home/hnkw/www/...')
#10 /home/hnkw/ in /home/hnkw/www/doc/wp-content/plugins/hgb_output/hgb_output.php on line 192