I just started with ShopSite starter. I have everything set up, every time I do a test payment, it works fine. Then, in the first week I went live, I had 3 people for which it worked fine, all the rest, they've either gotten a 404 page upon submission, or an Internal Error page.
I contacted ShopSite, they said it had something to do with Buffer Overload and created a patch, which they put on my website. Now not only is the sale not completing, it isn't even making it to the payment processor. It just freezes. However, we cannot recreate the problem. Every test payment we put through goes through fine. My clients have paid through Mac and PC, through iPad, etc. We have not been able to find a common link.
Has anyone else had the problem? I'm starting to lose sales and reputation because of it.
Best,
Caat