Welcome to Poll Everywhere. Our support team would be happy to help troubleshoot your Mac PPT issues. Would you be able to email them at firstname.lastname@example.org?
The Poll Everywhere presenter app for Mac needs to be running (and you logged in) while you are presenting the polls in PPT. I can’t tell from the screenshot, but you may have a button at the bottom right of that window named “insert.” Select the polls you want to add to your presentation then hit insert. This will insert poll slides directly into your presentation.
We look forward to resolving this issue for you.