SugarCRM CE: upgrade from 6.5.9 to 6.5.11 Fails with "ZIP Error(0): Status(0): Arhive(upload://SugarCE-6.5.11.zip)"

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http://serverfault.com – I have a fresh running installation of SugarCRM Version 6.5.9 (Build 8653) hosted at Bluehost.com (shared hosting) When I use the upgrade wizard, the system checks are all successful. Then I get the dialog where I need to select the package to load, I select "SugarCE-6.5.11.zip" that I hhave just downloaded and click upload. The upload starts, then fails with the following message: ZIP Error(0): Status(0): Arhive(upload://SugarCE-6.5.11.zip): Directory(/home2/jilbeeto/public_html/sugar/cache/upgrades/temp/H6CY1R) The parameters of My PHP.ini all exceed the recommendations given in this docum (HowTos)