Help! Moving to production error

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Hi,

Just moved my site to production and I can't exit edit mode. I'm getting a 500 error on the publish changes panel. Not sure what to do to diagnose. Have tried re-uploading the entire /concrete folder and no luck.
#0  in /home/rockyres/public_html/concrete/src/Page/Type/Composer/Control/Control.php:185
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  <p class="exc-message">
    Concrete\Core\Page\Type\Composer\Control\Control::getList(): The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition &quot;Concrete\Core\Page\Type\Composer\Control\CorePageProperty\PageTemplateCorePageProperty&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   </p>
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