新子域上的多站点中出现 500 错误 - 我的 wp-config.php 和 htaccess 文件是否正确

如何解决新子域上的多站点中出现 500 错误 - 我的 wp-config.php 和 htaccess 文件是否正确

我的新子域出现错误 500。我知道有多个步骤可以解决这个问题（stackoverflow 中有很多关于这个问题的支持），但在我进行故障排除之前，我首先想确保代码是正确的。

这是我的 wp-config.php 的最后一部分（包括我添加到文件中的内容）：

/**
 * For developers: WordPress debugging mode.
 *
 * Change this to true to enable the display of notices during development.
 * It is strongly recommended that plugin and theme developers use WP_DEBUG
 * in their development environments.
 *
 * For information on other constants that can be used for debugging,* visit the Codex.
 *
 * @link https://codex.wordpress.org/Debugging_in_WordPress
 */
define('WP_DEBUG',false);

define( 'WP_ALLOW_MULTISITE',true );

define('MULTISITE',true);
define('SUBDOMAIN_INSTALL',true);
define('DOMAIN_CURRENT_SITE','mydomain.com');
define('PATH_CURRENT_SITE','/');
define('SITE_ID_CURRENT_SITE',1);
define('BLOG_ID_CURRENT_SITE',1);
define('WP_ALLOW_REPAIR',true);

/* That's all,stop editing! Happy blogging. */

/** Absolute path to the WordPress directory. */
if ( !defined('ABSPATH') )
    define('ABSPATH',dirname(__FILE__) . '/');

/** Sets up WordPress vars and included files. */
require_once(ABSPATH . 'wp-settings.php');

// define( 'WP_CRON_LOCK_TIMEOUT',120   ); 
// define( 'AUTOSAVE_INTERVAL',300   );
// define( 'WP_POST_REVISIONS',5     );
// define( 'EMPTY_TRASH_DAYS',7     );
define( 'WP_AUTO_UPDATE_CORE',true  );

我对 wp-config.php 文件很有信心，但对我对 .htaccess 文件所做的更改则不太自信。这是整个 .htaccess 文件：

# BEGIN WordPress
# The directives (lines) between "BEGIN WordPress" and "END WordPress" are
# dynamically generated,and should only be modified via WordPress filters.
# Any changes to the directives between these markers will be overwritten.
<IfModule mod_expires.c>
    ExpiresActive On
    ExpiresByType image/jpg "access plus 24 hours"
    ExpiresByType image/jpeg "access plus 24 hours"
    ExpiresByType image/gif "access plus 24 hours"
    ExpiresByType image/png "access plus 24 hours"
    ExpiresByType text/css "access plus 24 hours"
    ExpiresByType application/pdf "access plus 1 week"
    ExpiresByType text/javascript "access plus 24 hours"
    ExpiresByType text/html "access plus 5 minutes"
    ExpiresByType image/x-icon "access plus 1 year"
    ExpiresDefault "access plus 24 hours"
</IfModule>
<ifModule mod_headers.c>
Header set X-Endurance-Cache-Level "2"
</ifModule>
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteCond %{REQUEST_URI} !^/\.well-known/acme-challenge/[0-9a-zA-Z_-]+$
RewriteCond %{REQUEST_URI} !^/\.well-known/cpanel-dcv/[0-9a-zA-Z_-]+$
RewriteCond %{REQUEST_URI} !^/\.well-known/pki-validation/(?:\ Ballot169)?
RewriteCond %{REQUEST_URI} !^/\.well-known/pki-validation/[A-F0-9]{32}\.txt(?:\ Comodo\ DCV)?$
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]]

# php -- BEGIN cPanel-generated handler,do not edit
# Set the “ea-php73” package as the default “PHP” programming language.
<IfModule mime_module>
  AddHandler application/x-httpd-ea-php73 .php .php7 .phtml
</IfModule>
# php -- END cPanel-generated handler,do not edit

RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]

# add a trailing slash to /wp-admin
RewriteRule ^wp-admin$ wp-admin/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule ^(wp-(content|admin|includes).*) $1 [L]
RewriteRule ^(.*\.php)$ $1 [L]
RewriteRule . index.php [L]

我对 .htaccess 文件不太了解的是它说要替换规则：

正如您在上面发布的 .htaccess 中看到的那样，我所做的只是将此代码添加到末尾.我应该覆盖现有规则吗？如果是，我要覆盖哪些规则？

如果有人能查看这两个文件并告诉我它们是否正确，我将不胜感激。如果没有，如何修复我的代码。这样，我就会知道我是否可以继续执行其余的故障排除步骤（使用资源，例如：500 error for new site in multisite wordpress）