Error after installing omp-3.3.0-8 on wamp (windows 10)

Hi,
After installing the package omp-3.3.0-8 on a folder of WAMP (http://127.0.0.1/omp-3.3.0-8/), I receive this error:
Parse error: syntax error, unexpected ‘class’ (T_CLASS) in C:\Program Files (x86)\EasyPHP-Devserver-17\eds-www\omp-3.3.0-8\lib\pkp\classes\core\PKPApplication.inc.php on line 230

Have you an idea about this error and the solution?

Regards

Hi @shirin

What version of PHP are you running in your WAMP environment? This error sounds like you are using a version below PHP7. OJS 3.3 requires PHP 7.

Best
Jason