In fact, when I tried to add a citation the window that used to appear before my computer reinstallation, does not appear anymore.

Here what I have done, I have reinstalled de plugin using this pathway in zotero: references, traitement de texte and click the button to insert plugin. I got the message that it was succesfull. I have checked the box to use the classic windows. I have restarted the computer and nothing changed. I have done it twice, nothing changed.

Any Idea of what the problem is?