Quite simply, if you wish to use XenForo, you should purchase a license. Unless you do this, your XenForo installation isn't legal, and you will be unable to receive support, download resources from our Resource Manager or download updates.
Please do not post links to such sites as the one you just posted a link to.
As you have already been told, we can only reply to messages in English. If you are unable to comply with this, you will be unable to take part in this community.