I am experiencing the same issue. In my case the problem is bug when setting opacity.
Note that the value for opacity below is “0,5” instead of “0.5”. My regional settings use comma as decimal separator, but the style should still be set using period.
.popmake-overlay.theme-807, .popmake-overlay.theme-default-theme {
background-color: rgba( 255, 255, 255, 0,5 );
}
Please fix this soon. I really love the plugin, but cannot use it without this working. Thanks!