Hello and thank you for the question.
I am a little surprised that you are experiencing this. The plugin is designed and implemented in such a way that it can be use into websites with very little effort. You are also the one who is reporting this. I suspect an interaction with another plugin you are using.
You write that you use the Pro plugin. According to the guidelines in this forum here, I would ask you to write pro-specific questions to the support available for this. For example, simply reply to the email with the licence information.