FATAL ERROR!!!!!! HELP!

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I upgraded to Concrete 5.4.2 and now I get this if I update any add ons.

Fatal error: View::render() [<a href='view.render'>view.render</a>]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition &quot;TonyMailingListBlockController&quot; 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/reaction/public_html/concrete/libraries/view.php on line 743

Mike0051
 
Tony replied on at Permalink Reply
Tony
looks like one of your files might be corrupted or incomplete. re-upload the mailing list package.