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Error: cannot to pack

Error: cannot to pack

Jul 08, 2025

Problem

When you create backup or export csv files task failed with Error: cannot to pack error (solution below can be applied for  'Error during export!' and Can't unpack package issues)

Solution

Make sure sys_temp_dir in your php is writable

In the Admin → Settings → System → click PHP Info in the top left. Search on page sys_temp_dir value. If no value present please add it and make sure this folder is writable. You can ask your hosting support for help or try to configure php.ini yourself.

Even if you fail to compress backup file you still can find not compressed backup folder in the admin/system/backup/ directory.

Not compressed export file with csv can be found in admin/system/data/ directory on your server

Ask hosting support

this is related to your server setup, please contact your hosting to help you configure php or php modules

If a task fails with a 403 Forbidden error, check the following:

  • Make sure the task.php file in the root directory does not have 777 permissions. Recommended permissions are 644 or 640, depending on your server setup.

  • Check if mod_security (or similar security modules) is disabled or correctly configured, as it may block access to task.php.



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