unfortunately i cant install the app. i get an error :

JInstaller: :Install: Die Joomla!-XML-Installationsdatei konnte nicht gefunden werden.
Es kann kein Installationspaket gefunden werden!

This section can only be seen by users with a valid subscription.
If you have a valid subscription, please login now

Support is

The support team is online and will be able to answer your inquiries. Please stay calm, follow the rules and do not cross post.

We will attend to you as soon as we can.

Your time
Stack Ideas time