Fatal Error in both front and backend

Need some help with this.
I get it in both the frontend and in admin
Fatal error: Can't use function return value in write context in /..../libraries/cegcore2/joomla_gcloader.php on line 94

Hi Ebaman,

\you must have php 5.6 or later to run Chronoforums v2

Best regards,
Max

Ok, that was probably the issue, it worked yesterday, however I did some changes in the webserver, so it was using 5.2.
I'll se how it works when it is updated (takes upp to two hours before the cluster is up to date)