Fatal error: Uncaught Error: Call to undefined function twenty_twenty_one_the_posts_navigation() in /home/xs304004/es-primary.co.jp/public_html/wp-content/themes/primary/index.php:36
Stack trace:
#0 /home/xs304004/es-primary.co.jp/public_html/wp-includes/template-loader.php(106): include()
#1 /home/xs304004/es-primary.co.jp/public_html/wp-blog-header.php(19): require_once('/home/xs304004/...')
#2 /home/xs304004/es-primary.co.jp/public_html/index.php(17): require('/home/xs304004/...')
#3 {main}
thrown in /home/xs304004/es-primary.co.jp/public_html/wp-content/themes/primary/index.php on line 36