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I'm new to Magento and installed today the SUPEE7405 patch without SSH.
Now I have a blank admin page and cant get it back running. I cleared var/session and var/cache. I checked the includes/config.php that the compiler is disabled. I activated the error message and received

Fatal error: Class 'Mage_Core_Helper_UnserializeArray' not found in app/Mage.php on line 547

Has anybody got a idea to solve the problem.

Fabian Schmengler
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DBR
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    Which version of Magento are you running ? Is the following file present on your system app/code/core/Mage/Core/Helper/UnserializeArray.php ? – Raphael at Digital Pianism Jan 21 '16 at 09:23
  • I'm using Version 1.9.2.1. No, no UnserializeArray.php in the folder – DBR Jan 25 '16 at 09:07
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    The app/code/core/Mage/Core/Helper/UnserializeArray.php was only introduced in Magento 1.9.2.2 it sounds to me like you downloaded the patch for version 1.9.2.2 and not for version 1.9.2.1. You should download this patch: magentary.com/wph/contentary/uploads/SUPEE-7405-1.9.2.1.zip – Raphael at Digital Pianism Jan 25 '16 at 09:16
  • Thanks for the hint. I just checked the zip I downloaded before. Zip File is named 7405-1.9.2.1 and the files seem to be equal to the zip in youre recommended link. I downloaded the Supee 6788 and found the UnserializeArrey.php. It seems the Admin before did not update as he supposed to. I'm not shure if I can just push the 6788 over now. – DBR Jan 25 '16 at 09:28
  • My suggestion: backup your Magento folder in its current state, apply patch 6788 and test. If something goes terribly wrong, use your backup folder as restore. Also don't forget to enable the patch 6788 in the backend after applying it. – Raphael at Digital Pianism Jan 25 '16 at 09:33
  • Thank you very mutch Digital Pianism!! Need to do some changes for now. Will update the shop later. – DBR Jan 25 '16 at 09:55
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    Applying 6788 fixed it for me. – sho Mar 16 '16 at 22:34

1 Answers1

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You have here a list of known bugs after patching Magento : https://magento.stackexchange.com/a/98236/33619
Some people are trying to fix them

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Matthéo Geoffray
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