Thread:Extension talk:SubPageList/Error Deleting Pages

I'm now getting the following error when trying to delete any page on the wiki. Any ideas why??

Catchable fatal error: Argument 1 passed to SPLHooks::onArticleDeleteComplete must be an instance of Article, instance of WikiPage given in /home/racecari/public_html/w/extensions/SubPageList/SubPageList.hooks.php on line 43