Cannot access subdomain dashboard – INTERNAL SERVER ERROR

Hello, I created a new subdomain for my site using multisite under my main directory. I installed WordPress through cpanel and published the site.
Everything seems to be in order and both www/non-www subdomain pages work fine.
I can’t access wp-admin dashboard for said subdomain.
I’m new to this so please let me know if the info is insufficient and any help would be appreciated!
Attaching the config and htaccess entries I made for multisite.

Main domain: rossindia.com

config file entry for main domain

/* Add any custom values between this line and the "stop editing" line. */
define( 'MULTISITE', true );
define( 'SUBDOMAIN_INSTALL', true );
define( 'DOMAIN_CURRENT_SITE', 'www.rossindia.com' );
define( 'PATH_CURRENT_SITE', '/' );
define( 'SITE_ID_CURRENT_SITE', 1 );
define( 'BLOG_ID_CURRENT_SITE', 1 );

define('SCRIPT_DEBUG', true);
/* Multisite */
define( 'WP_ALLOW_MULTISITE', true );
/* That's all, stop editing! Happy publishing. */

htaccess entry for main domain

# BEGIN MULTISITE
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]

# END MULTISITE

Sub domain: id.rossindia.com

Below is the config file entry for the subdomain:

/* Add any custom values between this line and the "stop editing" line. */
define( 'MULTISITE', true );
define( 'SUBDOMAIN_INSTALL', true );
define( 'DOMAIN_CURRENT_SITE', 'www.id.rossindia.com' );
define( 'PATH_CURRENT_SITE', '/' );
define( 'SITE_ID_CURRENT_SITE', 1 );
define( 'BLOG_ID_CURRENT_SITE', 1 );
define('SCRIPT_DEBUG', true);
/* Multisite */
define( 'WP_ALLOW_MULTISITE', true );
/* That's all, stop editing! Happy publishing. */

Entry in htaccess for subdomain

RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /blog/
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).*) $1 [L]
RewriteRule ^(.*\.php)$ $1 [L]
RewriteRule . index.php [L]
RewriteCond %{HTTP_HOST} ^www\.id\.rossindia\.com$ [OR]
RewriteCond %{HTTP_HOST} ^www\.www\.id\.rossindia\.com$
RewriteRule ^wp\-signup\.php$ "https\:\/\/www\.rossindia\.com\/" [R=301,L]

• This topic was modified 3 years, 1 month ago by James Huff. Reason: moved to Networking WordPress since this is a multisite issue

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