I've installed a copy of a developed C5 site onto localhost (XAMPP). When I click "Dashboard," I get some unstyled markup (there is no header in the markup output), and it ends in the following error:

Fatal error: Call to undefined method Collection::getCollectionTypeID() in C:\xampp\htdocs\mysite\concrete\models\block.php on line 125

However, when I click on the link for "View all 77 notifications," I go to System Notifications and the entire dashboard looks fine. At this point I can comfortably navigate about the Dashboard and everything seems to work.

Any idea what the problem is?