Ошибка HTTP ERROR 500

Options -Indexes 
ErrorDocument 404 /404.php

<IfModule mod_php5.c>
  php_flag session.use_trans_sid off
  #php_flag default_charset UTF-8
  #php_value display_errors 1
</IfModule>

<IfModule mod_php7.c>
  php_flag session.use_trans_sid off
  #php_flag default_charset UTF-8
  #php_value display_errors 1
</IfModule>

<IfModule mod_rewrite.c>
  Options +FollowSymLinks
  RewriteEngine On
  
 
  # Перенаправление домена с www на не-www
  RewriteCond %{REQUEST_METHOD} ^GET$
  RewriteCond %{HTTP_HOST} ^www\.(.*) [NC]
  RewriteRule ^(.*)$ http://%1/$1 [R=301,L,NE]

  # Редирект с index.php
  RewriteCond %{REQUEST_METHOD} ^GET$
  RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /.*index\.php?\ HTTP/
  RewriteRule ^(.*)index\.php?$ /$1 [R=301,L,NE]

  # Добавление / на конце
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-l
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteCond %{REQUEST_URI} !(.*)/$
  RewriteCond %{REQUEST_URI} !([^/]+/)*/[^/]*[\.][^/]*$
  RewriteRule ^(.*)$ /$1/ [R=301,L,NE]
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-l
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteCond %{REQUEST_FILENAME} !/bitrix/urlrewrite.php$
  RewriteRule ^(.*)$ /bitrix/urlrewrite.php [L]
  RewriteRule .* - [E=REMOTE_USER:%{HTTP:Authorization}]
</IfModule>

<IfModule mod_dir.c>
  DirectoryIndex index.php index.html
</IfModule>

<IfModule mod_expires.c>
  ExpiresActive on
  ExpiresByType image/jpeg "access plus 3 day"
  ExpiresByType image/gif "access plus 3 day"
  ExpiresByType image/png "access plus 3 day"
  ExpiresByType text/css "access plus 3 day"
  ExpiresByType application/javascript "access plus 3 day"  
</IfModule>