I have a conflict with using the DooWPMailChimpModal plugin.
Here’s the troubleshooting results I’ve done with the plugin developer.
I deactivated all of my plugins except the new plugin and the form pop up does not work. I then switched to the default WP theme and tried the plugin again, the form pops up just fine. While still using the default theme, I reactivated each of my plugin one at a time and the forms pops up with each one of them activated. I finally reactivated my Abundance theme, and the form no longer pops-up. If I refresh my screen, I see the pop up form sort of behind my menus but if I try to input anything it disappears (I have a snapshot if you want to see).