zend opcache not working virtualmin nginx

hello, i’ve beeb working for days and im not find a way to solve it, im using nginx virtualmin fastcgi php 5.6.7 and zendopcache

after setup zend opcache when i look at php info zend opcache are running but not caching anything, the same problem when using x-cache, x-cache are running but opcode is disabled.

cache hits ==>0
cache miss ==>0
script cache ==>0

how to make zend opcache working?