Upgrade Version 7.11.4 to Version 7.11.5 - manifest.php is missing

Version 7.11.4
Sugar Version 6.5.25 (Build 344)
PHP Version 7.2.15


i tried to upgrade 7.11.4 to 7.11.5 but i 've got the following error after uploading the upgrade package :
“The zip file is missing a manifest.php file. Cannot proceed.”

Thanks in advance for your help.

Make sure you’re using the upgrade package, not the full product package.

And try re-downloading, you might have a corrupted file.

it was a problem in the file “config.php”, i don’t know why, but I had filled in the field username and group
but it is not necessary.
‘default_permissions’ =>
array (
‘dir_mode’ => 1528,
‘file_mode’ => 432,
‘user’ => ‘’,
‘group’ => ‘’,

Thanks for help