This plugin DOESN'T work, why it's even on wordpress???

Have you had a look at out forums at https://forums.zingiri.com? You will probably find an answer to the issues you are encountering.

Yes, your forums are as useless as your plugin.

You see dozens of complaints here that your plugin cannot be installed on wordpress, all people see is a “redirect” message without any links or instructions.
Why do you ignore those complaints ?
Where are the installation instructions ?

like gorod i’m bored to try to install this forum so i move to another one which install in one click! Mingle Forum.

You always respond so professionally to these rude people Zingiri, so kudos to you for being so polite and professional.