Actually you are using older version of PHP. The latest version of it is 7.0.4 so please try updating the PHP version or use the custom solution posted in the following reply.
https://colorlibsupport.com/t/error-after-activate/#post-51034
Actually you are using older version of PHP. The latest version of it is 7.0.4 so please try updating the PHP version or use the custom solution posted in the following reply.
https://colorlibsupport.com/t/error-after-activate/#post-51034