Fatal error: Uncaught Error: Call to undefined function get_post_type_object() in /var/www/html/roiet2020/wp-admin/post-new.php:26 Stack trace: #0 /var/www/html/roiet2020/wp-load.php(18): require() #1 /var/www/html/roiet2020/wp-load.php(18): {closure}() #2 /var/www/html/roiet2020/wp-admin/admin.php(34): require_once('/var/www/html/r...') #3 /var/www/html/roiet2020/wp-admin/post-new.php(10): require_once('/var/www/html/r...') #4 {main} thrown in /var/www/html/roiet2020/wp-admin/post-new.php on line 26