Please upgrade my php version because my wordpress blog showing me some function error.
Undefined syntax at line.... something... I am not good in php.. I cant copy paste bcoz x10 is doing some upgrades to mysql and my site id down...
gravatar() is not a PHP function. Seems like there is a problem with that theme, not with x10hosting.
1. Try another theme
2. Do you have a plugin that uses gravatars? Maybe the theme expects you to have one.