Hello world!
Fatal error: Uncaught Error: Call to undefined function twenty_twenty_one_post_thumbnail() in /home/xs485659/inaka-bessou.com/public_html/izu.inaka-bessou.com/wp-content/themes/fudusan/template-parts/header/excerpt-header.php:20 Stack trace: #0 /home/xs485659/inaka-bessou.com/public_html/izu.inaka-bessou.com/wp-includes/template.php(785): require() #1 /home/xs485659/inaka-bessou.com/public_html/izu.inaka-bessou.com/wp-includes/template.php(718): load_template('/home/xs485659/...', false, Array) #2 /home/xs485659/inaka-bessou.com/public_html/izu.inaka-bessou.com/wp-includes/general-template.php(204): locate_template(Array, true, false, Array) #3 /home/xs485659/inaka-bessou.com/public_html/izu.inaka-bessou.com/wp-content/themes/fudusan/template-parts/content/content-excerpt.php(16): get_template_part('template-parts/...', '') #4 /home/xs485659/inaka-bessou.com/public_html/izu.inaka-bessou.com/wp-includes/template.php(785): require('/home/xs485659/...') #5 /home/xs485659/inaka-bessou.com/public_html/izu.inaka-bessou.com/wp-i in /home/xs485659/inaka-bessou.com/public_html/izu.inaka-bessou.com/wp-content/themes/fudusan/template-parts/header/excerpt-header.php on line 20