Redirect errors filling error.log

I am running WordPress Multisite on Ubuntu. I think my .htaccess file is screwed up due to trying to get a new migrated server to work correctly. The sites are working however the error.log is huge.

I was wondering if something is glaringly wrong with this .htaccess

RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]

RewriteCond %{HTTPS}  !=on
RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R,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]