payment page, payment methods problem (P.S.1.7)

[nevresimdukkani]

Hi everyone,

I have a problem with my new site www.duvetto.com

I am trying to make a new order, in order page there are only 3 steps.

-personal info
- adresses
- shipment method,

there are no 4th step payment methods. Even I can not configure the other steps after choosing shipping methods. it freezes. I have added a picture.

Does anyone have an idea?

Thanks.