Love it, but disappointed

I love the app so much, but I really want the full version. I even went and got more iTunes cards, but then this happened. RESTRICTED. I cant get it because It says I have to enable restrictions, but I have a code. And I never set a code, it just says I have one. Now I cant get the full... Please just make it a separate app...

Jena11111 about Sketchbook®, v3.6.1