i have installed the PopUp Plugin. I'm pretty sure that

Hi, i have installed the PopUp Plugin. I’m pretty sure that everything i did in this process was correct. However, the popup doesn’t appear. I don’t know what to do or what to try. I’m using the following wordpress theme: https://wildweblab.com/theme/mosaic

I already deactivated the caching plugin “cachify”, but it was still not working. Would be great if someone of you has any idea or help. Thank you.