Error when trying to update add-on

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Howdy,

I have an install on a Windows server. Installed the release candidate for Concrete 5.4 then upgraded to the final version. I received a notification that one of the add-ons had been updated, and tried to let it update. Here is the error I received:

PHP Fatal error: Call to a member function has() on a non-object in C:\Webcontents\BigSunday\Web2\concrete\controllers\login.php on line 27

I do not believe that I have been added to the project page ... that may be related.

Thank you!

elyon