Chyba 500 – Internal Server Error

Dobrý den,

po aktualizace ps 1.7.6.1 na verzi 1.7.6.4 se mi při načítání jakékoli stránky v back office zobrazí chyba 500 – Internal Server Error s odkazem na znalostní bázi. Frontend funguje. Prošel jsem rady ve znalostní bázi ale problém se mi nedaří odstranit. Netušíte kde by mohla být chyba ?

# ~~start~~ Do not remove this comment, Prestashop will keep automatically the code outside this comment when .htaccess will be generated again
# .htaccess automaticaly generated by PrestaShop e-commerce open-source solution
# http://www.prestashop.com - http://www.prestashop.com/forums
 <IfModule mod_rewrite.c>
<IfModule mod_env.c>
SetEnv HTTP_MOD_REWRITE On
</IfModule>
 RewriteEngine on
  #Domain: mamaselva.eu
RewriteRule . - [E=REWRITEBASE:/]
RewriteRule ^api(?:/(.*))?$ %{ENV:REWRITEBASE}webservice/dispatcher.php?url=$1 [QSA,L]
 # Images
RewriteCond %{HTTP_HOST} ^mamaselva.eu$
RewriteRule ^([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}img/p/$1/$1$2$3.jpg [L]
RewriteCond %{HTTP_HOST} ^mamaselva.eu$
RewriteRule ^([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$1$2$3$4.jpg [L]
RewriteCond %{HTTP_HOST} ^mamaselva.eu$
RewriteRule ^([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$1$2$3$4$5.jpg [L]
RewriteCond %{HTTP_HOST} ^mamaselva.eu$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$1$2$3$4$5$6.jpg [L]
RewriteCond %{HTTP_HOST} ^mamaselva.eu$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$1$2$3$4$5$6$7.jpg [L]
RewriteCond %{HTTP_HOST} ^mamaselva.eu$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$6/$1$2$3$4$5$6$7$8.jpg [L]
RewriteCond %{HTTP_HOST} ^mamaselva.eu$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$6/$7/$1$2$3$4$5$6$7$8$9.jpg [L]
RewriteCond %{HTTP_HOST} ^mamaselva.eu$
RewriteRule ^([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])([0-9])(\-[_a-zA-Z0-9-]*)?(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}img/p/$1/$2/$3/$4/$5/$6/$7/$8/$1$2$3$4$5$6$7$8$9$10.jpg [L]
RewriteCond %{HTTP_HOST} ^mamaselva.eu$
RewriteRule ^c/([0-9]+)(\-[\.*_a-zA-Z0-9-]*)(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}img/c/$1$2$3.jpg [L]
RewriteCond %{HTTP_HOST} ^mamaselva.eu$
RewriteRule ^c/([a-zA-Z_-]+)(-[0-9]+)?/.+\.jpg$ %{ENV:REWRITEBASE}img/c/$1$2.jpg [L]
# AlphaImageLoader for IE and fancybox
RewriteRule ^images_ie/?([^/]+)\.(jpe?g|png|gif)$ js/jquery/plugins/fancybox/images/$1.$2 [L]
 # Dispatcher
RewriteCond %{REQUEST_FILENAME} -s [OR]
RewriteCond %{REQUEST_FILENAME} -l [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^.*$ - [NC,L]
RewriteRule ^.*$ %{ENV:REWRITEBASE}index.php [NC,L]
</IfModule>
 AddType application/vnd.ms-fontobject .eot
AddType font/ttf .ttf
AddType font/otf .otf
AddType application/font-woff .woff
AddType font/woff2 .woff2
<IfModule mod_headers.c>
 <FilesMatch "\.(ttf|ttc|otf|eot|woff|woff2|svg)$">
  Header set Access-Control-Allow-Origin "*"
 </FilesMatch>
</IfModule>
 <IfModule mod_expires.c>
 ExpiresActive On
 ExpiresByType image/gif "access plus 1 month"
 ExpiresByType image/jpeg "access plus 1 month"
 ExpiresByType image/png "access plus 1 month"
 ExpiresByType text/css "access plus 1 week"
 ExpiresByType text/javascript "access plus 1 week"
 ExpiresByType application/javascript "access plus 1 week"
 ExpiresByType application/x-javascript "access plus 1 week"
 ExpiresByType image/x-icon "access plus 1 year"
 ExpiresByType image/svg+xml "access plus 1 year"
 ExpiresByType image/vnd.microsoft.icon "access plus 1 year"
 ExpiresByType application/font-woff "access plus 1 year"
 ExpiresByType application/x-font-woff "access plus 1 year"
 ExpiresByType font/woff2 "access plus 1 year"
 ExpiresByType application/vnd.ms-fontobject "access plus 1 year"
 ExpiresByType font/opentype "access plus 1 year"
 ExpiresByType font/ttf "access plus 1 year"
 ExpiresByType font/otf "access plus 1 year"
 ExpiresByType application/x-font-ttf "access plus 1 year"
 ExpiresByType application/x-font-otf "access plus 1 year"
</IfModule>
 <IfModule mod_headers.c>
    Header unset Etag
</IfModule>
FileETag none
<IfModule mod_deflate.c>
    <IfModule mod_filter.c>
        AddOutputFilterByType DEFLATE text/html text/css text/javascript application/javascript application/x-javascript font/ttf application/x-font-ttf font/otf application/x-font-otf font/opentype image/svg+xml
    </IfModule>
</IfModule>
 #If rewrite mod isn't enabled
ErrorDocument 404 /index.php?controller=404
 # ~~end~~ Do not remove this comment, Prestashop will keep automatically the code outside this comment when .htaccess will be generated again
 # cele domeny (aliasy)
RewriteCond %{REQUEST_URI} !^domains/
RewriteCond %{REQUEST_URI} !^/domains/
RewriteCond %{HTTP_HOST} ^(www\.)?(.*)$
RewriteCond %{DOCUMENT_ROOT}/domains/%2 -d
RewriteRule (.*) domains/%2/$1 [DPI]
 # subdomeny (s nebo bez www na zacatku)
RewriteCond %{REQUEST_URI} !^subdom/
RewriteCond %{REQUEST_URI} !^/subdom/
RewriteCond %{HTTP_HOST} ^(www\.)?(.*)\.([^\.]*)\.([^\.]*)$
RewriteCond %{DOCUMENT_ROOT}/subdom/%2 -d
RewriteRule (.*) subdom/%2/$1 [DPI]
 # aliasy - spravne presmerovani pri chybejicim /
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^domains/[^/]+/(.+[^/])$ /$1/ [R]
 # subdomeny - spravne presmerovani pri chybejicim /
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^subdom/[^/]+/(.+[^/])$ /$1/ [R]
 # http na https
#RewriteCond %{HTTPS} !=on
#RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]