Problem in Bank Payment Module

Hi,When clicked on "Wire Transfer" to complete the purchase, it gives the following error; "Error: You must be logged in to view this page" and logs out. It only gives this error in the first log in. There is no problem with the purchase except the customer won't see the account details of the required payments unless he logs in again and check his purchase details. If you log in again after this error, you can see your purchase and you can make another purchase without this error this time.I found the same question in the 2.0 archive but it was unanswered. I'm using the newer version of the script. Any kind of will be appreciated.