What php version is used on a server where your site is hosted?
It mustn’t be lower than 5.3 version. If 5.2 php version is set for your site please ask your host to increase it to 5.3 version.
If it doesn’t help please provide us with FTP and wp-admin panel credentials in Private Content.
Sorry, but we didn’t receive any information.
If you write some text in private content you should also write something in public post as private content won’t be published.
Please resend the credentials.