First of all please let me say that i've searched web intensively to find the solution but all i came up with DreamHost zend_extension=opcache.so line. I dont have that line since i run PHP 5.4.16.
Owncloud version 8.1.9
BUT here is the interesting thing: when i do version check from /var/www/html/owncloud
i get Cloud version 8.1.9
when i do version check from /usr/share/owncloud
ownCloud is not installed - only a limited number of commands are available
ownCloud version 9.0.2
Im very close to total noob in centos\owncloud please advice how can i solve error 500
Thank you in advance.