Dear @Janejun96
I have a feeling that the problem might be connected to your Webhost.
Can you try to install LayTheme on a local computer first?
Have a look at the application MAMP. It is for free and lets you run Wordpress on your computer.
Hey Jane! I am very sorry for not responding earlier! I want to give you a refund and the pro version for free in case you still want to use it. I wrote you an email, I need some info to do the refund.