http://camcaps.net/read-me/paid-membership
This link gives a couple other option. The front home page only has the bit coin option available where the link provides a couple of others.
Once completed then just post your details on that part of the forum pertaining to that link I posted and once it's confirmed then your good to go.
If you have paid previously, the system had a crash and the Admin has had to insert the paid ones back into the system manually.If you have previously paid and still have time remaining on your account just post on that link I posted to reactivate your status and possibly post you payment details if you still have that available. If not the Admin will know whether you are still paid or have to get a renewal.