Hello,
Apologies that you're having problems with the Koken installation. Unfortunately, we need more information in order to assist you. Can you tell us what domain you're trying to use for the installation? A URL, and steps you've taken for the installation would help us determine what you've done so far. Are you getting any specific errors? If you need assistance with the installation, please see How to Install Koken. Please provide a little more information and we can look into the issue further.
Regards,
Arnel C.