The following error message is shown or logged on attempt to browse product listings:
a:5:{i:0;s:51:"Invalid attribute name: custom_use_parent_settings.";i:1;s:2066:"#0 app/code/core/Mage/Eav/Model/Entity/Collection/Abstract.php(1156): Mage::exception('Mage_Eav', 'Invalid attribu...')
The reason of the error message is table structure mismatch between indexed data and actual table structure. This can happen after Magento upgrade. The following steps can be used to solve this:
- Flush Magento caches at System > Cache Management clicking on the Flush Magento Cache button
- Rebuild all indexes at System > Index Management selecting all indexes and clicking on the Reindex data.