Multisite folder on EC2

Hi guys,

I’ve followed the WordPress documentation to enable multisites.
I’ve created one subsite https://54.228.189.103/safehost and I’m not able to visit this website but I’m able to define theme, plugins, etc.

I’ve installed WordPress on /var/www/html and this is my .htaccess

<IfModule mod_rewrite.c>
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]
</IfModule>

Can you suggest me how to check?
Tia.