目录中的Symfony转换致命错误异常

I've got this error on ubuntu srver 14.04 (on local works perfect on windows 8 with xampp), if have any suggestion please help.

FATALERROREXCEPTION: ERROR: CALL TO UNDEFINED METHOD  SIMPLEXMLELEMENT::__SET_STATE()
IN /VAR/WWW/xxx/APP/CACHE/DEV/TRANSLATIONS/CATALOGUE.FR.74AD548A14679603165A68A05F1F6A84F1AB7740.PHP LINE 9

note : I cleared the cache and gived permissions to the cache and logs folders

chmod -R 777 app/cache 
chmod -R 777 app/logs 

but the error doesn't go away.

ُEdit:

I compared the catalogue file generated on the local and the one on the server and I found that on the local the call to SimpleXMLElement::__set_state isn't used, why is this deference ?

on local server

'This value should be false.' => 'Cette valeur doit être fausse.',

on the server

SimpleXMLElement::__set_state(array(0 => 'Cette valeur doit être fausse.',)),

Edit 2:

I copied the content of the local catalogue file to the server file and it worked, but I need to understand and resolve normally not by hacking it.

Regarding to this answer on another topic this could be an issue depending on your PHP version.

Do the versions differ between XAMPP and your Ubuntu installation?