Error 500 and then 404

Hello,
i have a problem when i try to link domain to my subsites.
I think i have a problem with .htaccess file, becouse:

When i put this to .htaccess:

# BEGIN WordPress
RewriteEngine On
RewriteBase /2019/
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

# php — BEGIN cPanel-generated handler, do not edit
# Set the “ea-php54” package as the default “PHP” programming language.
<IfModule mime_module>
AddHandler application/x-httpd-ea-php54 .php .php5 .phtml
</IfModule>
# php — END cPanel-generated handler, do not edit

My main site http://www.sostanj.info/2019/ works ok, but i get an error 500 on subsite http://www.pd-sostanj.si

But if i put clasic .htaccess file like this:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

Then my main site http://www.sostanj.info/2019 links are not working anymore, but subsite http://www.pd-sostanj.si is working fine.

Anyone has a clue what is buging me? 🙂

Thank you so much in advance guys…

Best regards,
Marko

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