I can say this is a beautiful extension and excellent support from the developer. I emailed the developer since the error message displayed on website before image gallery and he replied me back just in a very short time. Even we had tried couple times the error still there but he was so calm and so helpful even this is a FREE extension. Finally he fixed the problem and no more error. I have to say Excellent and Excellent Support.
Thank you the developer making this beautiful Free extension. I'm very appreciated for your support and your hard work.