[PopUp Pro] Pop-Up is not popping up if you click on the link to it more than once

I placed a link to a pop-up in my main menu, and have set the allowance to 50 for once visit. (The pop-up is the "Subscribe" item). I need a person to be able to click on that link as many times as they would like during on page visit. The only way I am able to click the pop a second time during the same session is if I refresh the page. I need for the pop-up to work even if a page is not refreshed. Thank you for your time!