I recently added a new payment gateway for Evalon/Converge. Tested it and it worked fine. Applied a few security patches and the whole site went down. Restored and the site is back up but I keep getting this error when at the final stage of checkout. "There was an error processing your order...."
Here's a link to my exception log: http://pastebin.com/zkfQ3uHq
Any help would be greatly appreciated.
Update: Only onepage checkout was having this issue. I disabled it and modified the multistep ship to multiple addresses checkout to meet the needs. It's not as succinct as I would like all on one page, but at least it works. I still would like to know what is causing the issue with the onepage checkout. If you can look at the exception log above and provide any guidance, it would be greatly appreciated.
I'll let you know if I experience the same thing (I hope not). I will be installing Elavon / Converge. They don't make it easy.