Solving the “Invalid backend model specified: catalog/attribute_backend_customlayoutupdate” problem (Magento 1)

Run the following query: SELECT * FROM eav_attribute WHERE ( `attribute_id` LIKE ‘%stomlayoutupdate%’ OR `entity_type_id` LIKE ‘%stomlayoutupdate%’ OR `attribute_code` LIKE ‘%stomlayoutupdate%’ OR `attribute_model` LIKE ‘%stomlayoutupdate%’ OR `backend_model` LIKE ‘%stomlayoutupdate%’ OR `backend_type` LIKE ‘%stomlayoutupdate%’ OR `backend_table` LIKE ‘%stomlayoutupdate%’ OR `frontend_model` LIKE…

Fixing Invalid backend model specified: catalog/attribute_backend_customlayoutupdate (Magento 1)

First, run this query:

Write down the attribute_ids returned by the query, then run the following query:

Fertig!