Ok, so I have been testing my new site extensively all day and everything works perfectly. (treypaulcasheditions.com with core ecommerce). So a friend volunteers to create a user and make a purchase to test it and things are now really messed up. I searched around and couln't find anything similar in the forums, so I am guessing this is something wrong with my site, and not a bug.

So now you can log in, put stuff in the shopping cart, go to the checkout, and then there is nothing in the cart. Go back to shopping and there is nothing in the cart. If you log out and then log back in the items are back, but you go to checkout and there is nothing in the cart.

Also, sometimes it tells you that you must log in even though it shows you are logged in at the bottom of the screen.

And it is doing the same thing on all my test accounts also that were working all day.

The only things I change today were turn on cache and change a link. After the problems I cleared the cache and then turned it off. No change. Also earlier in the day I turned on SSL on the ecommerce but that was working just fine also. I did several purchases afterward.

Has anybody seen anything like this?

Just a thought, could the DB have been corrupted some how? And what happens if I restore it from a backup a week ago, would it be out of sync with my changes I made to the physical files?

I was ready to go live, but now I can't