Comment on How to Update WordPress Themes by Darryl Shipp.

Stallion Responsive WordPress Theme had a problem logging into my site from an error with plugin wordfence,Deactivated wordfence, got in and had message to update Stallion but when i went to update stallion got this message and can not update anything? –

"Fatal error: ThemeUpdateChecker::injectUpdate() [themeupdatechecker.injectupdate]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition "ThemeUpdate" of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition in /home/dsallmgu/public_html/ on line 177"