Выкладываю сюда содержимое + помощь с хостинга. Просьба понимающих в чём дело объяснить как исправить ситуацию.
.htaccess
<IfModule mod_expires.c>
ExpiresActive On
ExpiresDefault "access plus 86400 seconds"
ExpiresByType image/x-icon "access plus 25920000 seconds"
ExpiresByType image/jpeg "access plus 25920000 seconds"
ExpiresByType image/png "access plus 25920000 seconds"
ExpiresByType image/gif "access plus 25920000 seconds"
ExpiresByType application/x-shockwave-flash "access plus 25920000 seconds"
ExpiresByType text/css "access plus 6048000 seconds"
ExpiresByType text/javascript "access plus 2160000 seconds"
ExpiresByType application/javascript "access plus 6048000 seconds"
ExpiresByType application/x-javascript "access plus 6048000 seconds"
ExpiresByType text/html "access plus 36000 seconds"
ExpiresByType application/xhtml+xml "access plus 36000 seconds"
</IfModule>
# compressing of files
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
AddDefaultCharSet UTF-8
# 1.To use URL Alias you need to be running apache with mod_rewrite enabled.
# 2. In your opencart directory rename htaccess.txt to .htaccess.
# For any support issues please visit: http://www.opencart.com
Options +SymLinksIfOwnerMatch
# Prevent Directoy listing
Options -Indexes
# Prevent Direct Access to files
<FilesMatch "\.(tpl|ini|log)">
Order deny,allow
Deny from all
</FilesMatch>
# SEO URL Settings
RewriteEngine On
# If your opencart installation does not run on the main web folder make sure you folder it does run in ie. / becomes /shop/
RewriteBase /fut/
RewriteRule ^sitemap.xml$ index.php?route=feed/google_sitemap [L]
RewriteRule ^googlebase.xml$ index.php?route=feed/google_base [L]
RewriteRule ^yandexmarket.xml$ index.php?route=feed/yandex_market [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([^?]*) index.php?_route_=$1 [L,QSA]
### Additional Settings that may need to be enabled for some servers
### Uncomment the commands by removing the # sign in front of it.
### If you get an "Internal Server Error 500" after enabling any of the following settings, restore the # as this means your host doesn't allow that.
# 1. If your cart only allows you to add one item at a time, it is possible register_globals is on. This may work to disable it:
# php_flag register_globals off
# 2. If your cart has magic quotes enabled, This may work to disable it:
# php_flag magic_quotes_gpc Off
# 3. Set max upload file size. Most hosts will limit this and not allow it to be overridden but you can try
# php_value upload_max_filesize 999M
# 4. set max post size. uncomment this line if you have a lot of product options or are getting errors where forms are not saving all fields
# php_value post_max_size 999M
# 5. set max time script can take. uncomment this line if you have a lot of product options or are getting errors where forms are not saving all fields
# php_value max_execution_time 200
# 6. set max time for input to be recieved. Uncomment this line if you have a lot of product options or are getting errors where forms are not saving all fields
# php_value max_input_time 200
хелп с хостинга по ошибке
Ошибка 500 также может возникать вследствие неправильного обращения с CGI-скриптами:
CGI-скрипты должны иметь окончания строк в формате UNIX (\n), а не в формате Windows (\r\n).
Для этого их надо загружать на сервер по FTP в режиме ASCII.CGI-скрипты и папки, в которых они находятся,
должны быть доступны для записи только владельцу, то есть иметь права 0755 (drwxr-xr-x).В результате работы CGI-скрипта
сформированны неправильные HTTP-заголовки ответа. В этом случае для решения проблемы полезно обратиться к error_log (его можно найти в контрольной панели в разделе
«Статитистика / Лог-файлы / Лог ошибок»).