Christmas Calendar

Fatal error: Uncaught Error: Call to undefined method Mage_Catalog_Model_Resource_Category_Flat_Collection::joinUrlRewrite() in /srv/www/magento/releases/20210115160606/src/magento/app/code/core/Mage/Catalog/Model/Resource/Category/Tree.php:163 Stack trace: #0 /srv/www/magento/releases/20210115160606/src/magento/app/code/core/Mage/Catalog/Model/Resource/Category.php(576): Mage_Catalog_Model_Resource_Category_Tree->addCollectionData(Object(Mage_Catalog_Model_Resource_Category_Flat_Collection), false, Array, true, true) #1 /srv/www/magento/releases/20210115160606/src/magento/app/code/core/Mage/Catalog/Model/Category.php(822): Mage_Catalog_Model_Resource_Category->getCategories('2', 2, false, false, true) #2 /srv/www/magento/releases/20210115160606/src/magento/app/code/core/Mage/Catalog/Helper/Category.php(82): Mage_Catalog_Model_Category->getCategories('2', 2, false, false, true) #3 /srv/www/magento/releases/20210115160606/src/magento/app/code/local/Geentoo/LayeredNav/Model/Filter.php(840): Mage_Catalog_Helper_Category->get in /srv/www/magento/releases/20210115160606/src/magento/app/code/core/Mage/Catalog/Model/Resource/Category/Tree.php on line 163