MAY
03
2020
Magento Checkout broken after SUPEE-10415, blank empty page
Problem description After installing SUPEE-10415 patch Magento Checkout page is broken, blank or empty. Cause and solution There are several possible cases caused by improper patch installation of SUPEE-10415 or earlier SUPEE-8788 patch, Please check the following articles for solution: Cannot redeclare Mage_Core_Helper_String::unserialize() Cannot redefine class constant Mage_Customer_Model_Customer::MAXIMUM_PASSWORD_LENGTH Unsupported data type N If you have any difficulties with solving this problem or got a similar one, please let us know in comments below, so we… Read the rest