Most likely you are using a plugin Popup Maker to create modelki. With the establishment of modelki CF7 shortcode to insert.
Next, create a trigger that will start (show) your modelku.
The script modal window is tied to a class or id to links.
I can assume that in your case:
<a href="#" class="popmake-106">Open popup</a>
event display of modelki tied to the class