I installed COD module on my magento shop but now i get this error:
Fatal error: Class ‘Mage_Adminnotification_Helper_Data’ not found in /home/sierbes/domains/sierbestratingnederland.nl/public_html/app/Mage.php on line 546
I think it overwrited some files, but not sure wich one.
I removed the module files, but still getting the error.
Could somebody please help me out here?