carinallc on "Internal Server Error on Create New Site"

My .htaccess. Thanks again for any insite.

Again, I get a 500 Internal Server error. I can go to the site but there isn't a Theme and none of my network themes are available either

*********************************************************
# BEGIN WordPress

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
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).*) sitename/$2 [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(.*\.php)$ sitename/$2 [L]
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

# BEGIN wtwp_cache
# END wtwp_cache

# BEGIN wtwp_security
# END wtwp_security