Preset import Lightroom CC Problems

Right! The web version of Lightroom does not support importing presets.

The Problem is solved 

I use the Web-Version of Lightroom. Where could I find the Version number?

That is odd. As you can see from my screenshot, the three dots light up when you click on them. And the box that appears has a small triangle part pointing at the dots, so you can see that's where the dialog originates. I miss both in your screenshot.

What I do see however is a plus icon on the left of the three dots, which is probably the button for creating a new preset. That is a menu item in my version. This makes me believe that you are using an older version of Lightroom that perhaps did not support importing presets yet. Go to Help - System Info and check the version number. What does it say?

yes...of course 

When I click on the dots in saw this option

Have you clicked on the three dots?