Problem description
After installing SUPEE-10415 patch Magento Checkout page is broken, blank or empty.Cause and solution
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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 can find the solution together.
Posted in: supee-10415, supee-8788