Здраствуйте... что может быть за ошибка?
файлик .htaccess
ErrorDocument 404 /404.html
# Redirect from www to non-www (never use both)
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ http://%1/$1 [R=301,L]
# Protect .htaccess
<Files .htaccess>
order allow,deny
deny from all
</Files>
# Deflate files to fasten the loading
<IfModule mod_deflate.c>
SetOutputFilter DEFLATE
AddOutputFilterByType DEFLATE application/x-httpd-php text/html text/xml text/plain text/css text/javascript application/javascript application/x-javascript image/jpeg image/jpg image/png image/gif font/ttf font/eot font/otf
</IfModule>
<IfModule mod_deflate.c>
# Properly handle old browsers that do not support compression
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
# Explicitly exclude binary files from compression just in case
SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png|pdf|swf|ico|zip|ttf|eot|svg)$ no-gzip
</IfModule>
<ifModule mod_headers.c>
# Enable Keep Alive
Header set Connection keep-alive
# Properly handle requests coming from behind proxies
Header append Vary User-Agent
# Turn on Expires
ExpiresActive On
# Turn off ETag
<FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf)(\.gz)?$">
Header unset ETag
FileETag None
</FilesMatch>
# Set up caching on media files for 5 weeks
<FilesMatch "\.(gif|jpg|jpeg|png|swf|flv|ico|pdf|avi|mov|ppt|doc|mp3|wmv|wav|ttf|woff|svg)$">
ExpiresDefault A3024000
Header append Cache-Control "public"
</FilesMatch>
# Set up 7 days caching on commonly updated files
<FilesMatch "\.(xml|txt|html|js|css)$">
ExpiresDefault A604800
Header append Cache-Control "proxy-revalidate"
</FilesMatch>
# Force no caching for dynamic files
<FilesMatch "\.(php|cgi|pl|htm)$">
ExpiresActive Off
Header set Cache-Control "private, no-cache, no-store, proxy-revalidate, no-transform"
Header set Pragma "no-cache"
</FilesMatch>
</ifModule>