Fatal error: Uncaught TypeError: array_pop(): Argument #1 ($array) must be of type array, null given in /home/theknot/hotel-the-knot.jp/public_html/wp-content/themes/wp-theme-hoteltheknot/functions.php:501 Stack trace: #0 /home/theknot/hotel-the-knot.jp/public_html/wp-content/themes/wp-theme-hoteltheknot/functions.php(501): array_pop(NULL) #1 /home/theknot/hotel-the-knot.jp/public_html/wp-includes/class-wp-hook.php(324): add_custom_meta('') #2 /home/theknot/hotel-the-knot.jp/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #3 /home/theknot/hotel-the-knot.jp/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #4 /home/theknot/hotel-the-knot.jp/public_html/wp-includes/general-template.php(3064): do_action('wp_head') #5 /home/theknot/hotel-the-knot.jp/public_html/wp-content/themes/wp-theme-hoteltheknot/header.php(117): wp_head() #6 /home/theknot/hotel-the-knot.jp/public_html/wp-includes/template.php(810): require_once('/home/theknot/h...') #7 /home/theknot/hotel-the-knot.jp/public_html/wp-includes/template.php(745): load_template('/home/theknot/h...', true, Array) #8 /home/theknot/hotel-the-knot.jp/public_html/wp-includes/general-template.php(48): locate_template(Array, true, true, Array) #9 /home/theknot/hotel-the-knot.jp/public_html/wp-content/themes/wp-theme-hoteltheknot/taxonomy.php(4): get_header() #10 /home/theknot/hotel-the-knot.jp/public_html/wp-includes/template-loader.php(106): include('/home/theknot/h...') #11 /home/theknot/hotel-the-knot.jp/public_html/wp-blog-header.php(19): require_once('/home/theknot/h...') #12 /home/theknot/hotel-the-knot.jp/public_html/index.php(17): require('/home/theknot/h...') #13 {main} thrown in /home/theknot/hotel-the-knot.jp/public_html/wp-content/themes/wp-theme-hoteltheknot/functions.php on line 501