Checkout doesn't work

Hello,

i have a problem with checkout on my shop. When I fill the field when ordering and I'm trying saving my order takes me to the page of ending transaction then my order doesn't save in my account and don't save in my panel admin.

Link to my shop OC 1.5.5.1

Thanks for help

its working fine i have just checked it

No..it isn't work, because I have new client but I haven't got new order...

did you check under order tab because i got the successful message.
please select missing under status tab & click filter to check if orders are getting missed.

Yes, I found. I see my orders, when I choose status "missing orders".

I would like so as to orders receive status "pending" status instead of "missing orders" because the client and I (administrator) does not receive a notification of a complex order.

Can you help with this problem?