I'm trying to fix the error
Fatal error: Call to a member function getBackend() on a non-object in Abstract line 514
Because i cant enter my manage customers in the backend
I did a trace and it shows me this :
Mage registry key "original_include_path" already exists
Anyone knows what is going wrong here and knows a fix?
That Mage registry error is telling you that you or Magento has already set data to the registry key original_include_path and that it cannot be overwritten. Magento registry must be unset and reset if you want to modify its value.
You shouldn't get this error unless you have some modifications that's not quite right. I would do a text search over your code base for "Mage::register('original_include_path'," and see if you get any hits in customized areas. If you don't find any unusual stuff, maybe the workflow is incorrect.
