Hi Team, thanks for your answer. I realized I had manually added a script but apparently the plugin already adds a script on top of the <head> section. So I deleted the one I added. Now I can see the banner. Thanks a lot.
Just for the future, can you please clarify how the script works? Does the plugin itself automatically add the necessary script at the top of the <head>? I was under the impression that I had to add it manually?