Bug in Adsens

Options for AdSense when I set that I want only Ads at the bottom and suppress top and middle ads.

Fatal error: ezTab::renderForm() [eztab.renderform]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition "message" 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/gfolinga/public_html/wp-content/plugins/easy-ads-lite/ezAPI.php on line 453

http://ww.wp.xz.cn/extend/plugins/easy-ads-lite/