Hello, we’ll try to check it and find the error as soon as possible.
Please can you list some information?
– WP version
– Active plugins
– Settings screenshot
The preview page works?
Thank you for your cooperation!
In fact we have thinked that the problem was the wp_footer hook!
Great, thank you! Please consider to leave a five star feedback if you like our plugin it is very important fo us. Thank you very mutch.