Does this .htaccess file contain errors?

DirectoryIndex index.php ErrorDocument 404 /404.php order allow,deny deny from 212.174.63.150 deny from 41.143.204.175 allow from all # Enable expirations ExpiresActive On # Default directive ExpiresDefault "access plus 1 month" # My favicon ExpiresByType image/x-icon "access plus 1 year" # Images ExpiresByType image/gif "access plus 1 month" ExpiresByType image/png "access plus 1 month" ExpiresByType image/jpg "access plus 1 month" ExpiresByType image/jpeg "access plus 1 month" # CSS ExpiresByType text/css "access plus 1 month" # Javascript ExpiresByType application/javascript "access plus 1 year" RewriteEngine on # START forcing www. RewriteCond %{HTTP_HOST} !^$ RewriteCond %{HTTP_HOST} !^www\. [NC] RewriteCond %{HTTPS}s ^on(s)| RewriteCond %{REQUEST_URI} !^/[0-9]+\..+\.cpaneldcv$ RewriteCond %{REQUEST_URI} !^/[A-F0-9]{32}\.txt(?:\ Comodo\ DCV)?$ RewriteRule ^ http%1://www.%{HTTP_HOST}%{REQUEST_URI} [R=301] # END forcing www. # Prevents abuse of Cookies # RewriteCond %{HTTP_COOKIE} ^.*(<|>|'|%0A|%0D|%27|%3C|%3E|%00).* [NC] # Prevents URLs with Forbidden Characters # RewriteEngine On RewriteCond %{REQUEST_URI} ^.*(,|;|:|<|>|">|"<|\.\.\.).* [NC,OR] RewriteCond %{REQUEST_URI} ^.*(\=|\@|\[|\]|\^|\`|\{|\}|\~).* [NC,OR] RewriteCond %{REQUEST_URI} ^.*(\'|%0A|%0D|%27|%3C|%3E|%00).* [NC] # Blacklist via the Query String # RewriteCond %{QUERY_STRING} ^.*(localhost|loopback|127\.0\.0\.1).* [NC,OR] RewriteCond %{QUERY_STRING} ^.*(\.|\*|;|<|>|'|"|\)|%0A|%0D|%22|%27|%3C|%3E|%00).* [NC,OR] RewriteCond %{QUERY_STRING} ^.*(md5|benchmark|union|select|insert|cast|set|declare|drop|update).* [NC] RewriteRule ^(.*)$ - [F,L] # Prevent Hotlinking to Images # #RewriteCond %{HTTP_REFERER} !^$ #RewriteCond %{HTTP_REFERER} !^http://(www\.)? myexample/.*$ [NC] #RewriteRule \.(jpg|jpeg|gif|png|bmp)$ - [F] # Redirect .net and .org to .com # RewriteCond %{HTTP_HOST} ^www\. myexample\.net$ RewriteCond %{HTTP_HOST} ^www\. myexample\.org$ RewriteCond %{REQUEST_URI} !^/[0-9]+\..+\.cpaneldcv$ RewriteCond %{REQUEST_URI} !^/[A-F0-9]{32}\.txt(?:\ Comodo\ DCV)?$ RewriteRule ^/?$ "http\:\/\/www\.myexample\.com\/" [R=301,L]