Network Admin Links re-written without Proper Slash

Hi team. I’m having problem with my WordPress Multisite setup (www.sjag.org). On the admin dashboard, all of the URL links under MY SITES > NETWORK ADMIN get rewritten without a trailing slash on the domain name. So, for example, sjag.orgwp-admin/network (note the lack of a slash between .org and wp-admin).

If I add a trailing slash to the DOMAIN_CURRENT_SITE url in the wp-config.php (sjag.org/), the address gets rewritten correctly, but then the page comes back with an ERR TOO MANY REDIRECTS.

If I add a slash under PATH_CURRENT_SITE', '' to read PATH_CURRENT_SITE', '/' I get a division by zero error.

All of the other links work perfectly on the admin dashboard as well as the front end. It’s just the NETWORK ADMIN and its submenus.

This site was originally developed on MAMP localhost and then migrated using WP MIGRATE DB plugin. This error does not exist on the MAMP version.

/** MySQL hostname */
define('DB_HOST', 'localhost');

/** Database Charset to use in creating database tables. */
define('DB_CHARSET', 'utf8mb4');

/** The Database Collate type. Don't change this if in doubt. */
define('DB_COLLATE', '');

/**
 * 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);

/* Multisite */
define('MULTISITE', true);
define('SUBDOMAIN_INSTALL', false);
define('DOMAIN_CURRENT_SITE', 'sjag.org');
define('PATH_CURRENT_SITE', '');
define('SITE_ID_CURRENT_SITE', 1);
define('BLOG_ID_CURRENT_SITE', 1);
define('WP_HOME','sjag.org');
define('WP_SITEURL','sjag.org');

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HTACCESS File is

# BEGIN WordPress
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]

# add a trailing slash to /wp-admin
RewriteRule ^([_0-9a-zA-Z-]+/)?wp-admin$ $1wp-admin/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(wp-(content|admin|includes).*) $2 [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]

# END WordPress

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Thanks for any help!