How to install an app from app store on my local server

Hi,

I installed the nexclould 15 on my local Ubuntu 18LTS. But I can’t install the apps from the app store.

To install an app when hitting the app store page(settings/apps/customization), I got the following message.

“No apps found for your version”

Could you please advise on it?

Thanks for your attention.
Regards,
Liki

Did you add a custom app store via config.php? Otherwise try the URL without /customization, which should match the one when you select Apps from the top right menu of Nextcloud web UI.