New paypal system has stopped working with my code

Question

I\'ve not been able to work on a project of mine for about 1 month. Now that I have some time to get back into it. I have noticed that paypal have done some changes.

Answer 1

I finally got a response from PayPal which looks promising:

Response Via Email (xxxx)
Dear xxxxx,
my name is xxxxx from Merchant Technical Services
This is a known issue that I am working with our engineers closely on,
I apologize for the inconvenience this has caused.

Sincerely,
xxxxxx
Merchant Technical Support
PayPal, an eBay Company

Answer 2

The problem lies with the Sandbox AppID you're using: APP-80W284485P519543T.

We're aware of this issue and are working to resolve it. I'll let you know as soon as this is fixed.
In the meantime you should be able to resume testing with US accounts.