We\'ve just upgraded from Magento version 1.8.0.0 to 1.8.1.0 and now when we go to the configuration section of our site we receive the message:
Fatal error: Cla
Every of the answer so far seem dirty to me. Instead of crippeling the Mage_GoogleCheckout Module you should just deactivate it.
Following steps will result in deactivating the module and leaving the code intact:
right after