After configuring around in developer mode in the action menu one view can not be opened any more.
The product category throws this message: View error Can't find field 'virtual_available' in the following view parts composing the view of object model 'product.product': * product.product.tree Either you wrongly customized this view, or some modules bringing those views are not compatible with your current data model
Can I repair this in some xml, or do I have to go back to the last backup. Only one day, but some work...
Thanks in advance