Actual behaviour
Can’t install - error message: Required PHP extension not found : zip
PHP info shows zip extension is installed
Server configuration
Current PHP version: 5.6
ownCloud version (see ownCloud admin page): Version : 9.1.4
Fresh install: Yes
Special configuration (external storage, external authentication, reverse proxy, server-side-encryption): -
The message shows, that the extension / module is not correctly loaded for your webserver. So yes, this is a server side issue.
Please contact the support of your webhoster, especially as you’re using cPanel. They might be able to tell you whats wrong here and how to fix it.
Reason:
ownCloud would show “PHP module zip not installed.” not “Required PHP extension not found : zip” so this is something cPanel specific where people in here can’t help you with.
I think as long as the message is shown the module is not correctly installed or enabled. Maybe you can get some hints from a support forum of your linux distribution how to correctly install and enable that module?