Help? (Invalid Parameter)?

Ok, I did an order from my website for a $1.00 and It took me to the paypal website and then it brought me back to my site. I go to confirm order and I get this...

Step 1 of 3 - Delivery Information

We were not able to process your order. Please try again, select an alternate payment method, or contact the store owner for assistance. (Invalid Parameter)

Shipping Information:
Mrs No one
12345 SE 678th Street
Springfield, MO 65000
United States

Your order will be shipped to the address at the left or you may change the shipping address by clicking the Change Address button.

Shipping Method:
Please select the preferred shipping method to use on this order.
Flat Rate $5.00Best Way
Per Item $2.50Best Way
Store Pickup $0.00Walk In
Special Instructions or Comments About Your Order Continue to Step 2
- choose your payment method.

I'm having the same problem and so is a friend who uses Zen too. But I've been getting orders tonight (and including earlier today) just fine.

Have you successfully received orders before?

The website is new and I just added the payment part of the site. I can't seem to get a simple test $1.00 order to go through. I just found the patch a little bit ago so I'll install that and see if it helps.

Installing the patch made no change. Still the same problem. Any HELP! would be appreciated.

I am also having the same problem... I went through the logs I had it send me and from what I can tell it checks all orders that my Test account has made and its past address's... Not sure if that effects anything.... What patch are you talking about also

okay I installed the patch and it still doesnt seem to want to work

I am receivin the same error message.

I re-installed Paypal IPN and it is working. (I am still not receiving copies of orders for echecks, so I cannot use IPN)

Who is your hosting company?

Bluehost here.

I wanted to clarify my previous post. I installed PayPal IPN to make sure that the issue wasn't with PayPal (since so many of us are having this issue and I know that myself and one other person had Express working properly before)

PayPal IPN worked for the transaction, but I am still receiving the same error message when I try to check out with PayPal Express.

I checked the PayPal status blog (posted at the top of this forum) and there have been no updates since Feb 8, so I do not believe that is the cause of the issue.

I removed PayPal Express and Intalled it again, reentering all of my API information, but I am still getting the same error message.

PayPal Express isn't working at all and PayPal IPN doesn't work for EChecks! HELP!!!!

Please stop multiple posting. It makes it very difficult to follow what has and hasn't transpired. Pick a thread and stay there. Thanks.