Impossible to make a site

Dear developers,

I came onto your theme and found it very great with a nice design. Therefore I stepped to the pro version for creating a blog. Now, big problem. Indeed, it is for me impossible to create my own layout. I’m new to WordPress but it seems that the “Option panel” from your theme does not work. I indeed do not get access to any of the tab for modification except General and Typography. All te rest is not accessible. It’s quite frustrating when you pay for something to work. But I’m sure you could provide me with some support.

Cheers