EVERYTHING is showing as out of stock once people get to the checkout

[brandunleashed]

Hi, and thanks in advance for your help.

My store has been fine, but for the last couple of weeks, customers add things to their cart, go to my checkout, and then it says the items are out of stock. Not only are there more than 300 of each item marked as "in stock" in inventory, but I also have the inventory policy set to "Continue selling when out of stock". I did a test order and they also said out of stock for me. I did another test order after shutting off the "continue selling when out of stock" and added 600 to the quantity. Still shows as out of stock in checkout. Has anyone had this issue? The store is earcharms.com.

[brandunleashed]

PS- Support said this was okay on Twitter, but it's still happening on my store...

[GabaGaba]

I'm having the exact issue.