Fatal error: Uncaught Error: Call to undefined function twenty_twenty_one_the_posts_navigation() in /home/.sites/913/site1424467/web/wp-content/themes/custom/index.php:29
Stack trace:
#0 /home/.sites/913/site1424467/web/wp-includes/template-loader.php(106): include()
#1 /home/.sites/913/site1424467/web/wp-blog-header.php(19): require_once('/home/.sites/91...')
#2 /home/.sites/913/site1424467/web/index.php(17): require('/home/.sites/91...')
#3 {main}
thrown in /home/.sites/913/site1424467/web/wp-content/themes/custom/index.php on line 29