Cannot login to admin after supee-7405 patch for ver 18.104.22.168
I am using magento version 22.214.171.124 i try to install security patch SUPEE-7405 i have downloaded the files from magento site with name of "SUPEE-7405 for CE 126.96.36.199-188.8.131.52 (0.12 MB)" i used this command "sh PATCH_SUPEE-7405_CE_184.108.40.206_v1-2016-01-20-04-42-03.sh" after installing i am not able to login admin it show blank page in system.log it says "include(Mage/Core/Helper/UnserializeArray.php): failed to open stream: No such file or directory" but this file not exists in Magento version 220.127.116.11 its available in version 18.104.22.168. Do i need to upgrade the magento version and then install SUPEE-7405 for CE 22.214.171.124-126.96.36.199 (0.12 MB) or any other solution to fix the issue.
Re: Cannot login to admin after supee-7405 patch for ver 188.8.131.52
Thanks for your reply. My Magento version is 184.108.40.206. Patch version is SUPEE-7405 for CE 220.127.116.11-18.104.22.168. My question is do I need upgrade the Magento version or I missed dependency patches. Because when I try to install the patch it says some files are missing those files are not exists in 22.214.171.124 soi copied missing file manually again it throws error.