Pay per view button not visible and errors when clicked on


I am running wp 2014 theme. I have just tried to setup pay per view. When looking at my website it is difficult to see the pay per view button (almost not visable).

When i click on the button an error 10002 – Security error – security header is not valid. I have tried de activating wp security it made no difference. It worked once and when it did the checkout asked for full details like address etc which i didn’t think this plug in would do.

Please help..

i have left plugin active for now so you can see what is happening.