Premium Subscription Register Page Problem

hello there , i faced a little problem here ,

in Register page , when u go for register and put ur username and password and then next move for Premium Subscription , it shows the page but the buttons for the Subscription doesnt show up ,

u can see

ull see the buttons doesnt show up ,

i know the problem came because the theme , but can i fix it by css or something ? or thats inflexible

thank u very much