Error found in 4.0.0 Version

SG Optimizer works on PHP 5.5 or above. You see the error because you’re using older PHP version. You can switch the PHP Version from the PHP Version Manager tool in cPanel or manually by following these instructions: https://www.siteground.com/kb/how_to_have_different_php_versions/

Thank you very much! I use 5.3.29 version of PHP, is very old!!

I will change my PHP version ??

Fantastic support!!

Always glad to help ??