Urgent Help Needed!

[Serious]

Got a call from a local customer a few minutes ago and he said he'd been getting an error message when tying to complete and order.

Basically when completing an order the following message is displayed and nothing happens.

Your order is being processed, please wait...

I log on using his screen name and password and saw the same message.

loged in as myself (regular customer log in) and attempted to complete an order, same exact thing.

The only recent change to my site has been to add the facbook like Button. I've already deleted that before posting this thread, it made no difference.

I cleared my debug log and tried a few more purchases. Smae result but nothing showing up in my debugg folder (cache).

Had a few completed orders yesterday, nothing today.

HELP!!
Try it for your self....
seriousoffroadproducts.com