Bonjour tout le monde !
Fatal error: Uncaught Error: Call to undefined function twenty_twenty_one_post_thumbnail() in /var/www/html/web/wp-content/themes/evasteIn/template-parts/header/excerpt-header.php:20 Stack trace: #0 /var/www/html/web/wp-includes/template.php(732): require() #1 /var/www/html/web/wp-includes/template.php(676): load_template('/var/www/html/w...', false, Array) #2 /var/www/html/web/wp-includes/general-template.php(204): locate_template(Array, true, false, Array) #3 /var/www/html/web/wp-content/themes/evasteIn/template-parts/content/content-excerpt.php(16): get_template_part('template-parts/...', '') #4 /var/www/html/web/wp-includes/template.php(732): require('/var/www/html/w...') #5 /var/www/html/web/wp-includes/template.php(676): load_template('/var/www/html/w...', false, Array) #6 /var/www/html/web/wp-includes/general-template.php(204): locate_template(Array, true, false, Array) #7 /var/www/html/web/wp-content/themes/evasteIn/archive.php(28): get_template_part('template-parts/...', 'excerpt') #8 /var/www/html/web/wp-include in /var/www/html/web/wp-content/themes/evasteIn/template-parts/header/excerpt-header.php on line 20