PayPal Sandbox: "Things don't appear to be working..."

[MannyAtCoePark]

After making a few changes to the text on a working form (no changes to the HTML variables) I get the "Things don't appear to be working..." message when trying to use the sandbox.

I did a post dump and all seems to be within spec. Now what?

[MTS_Justin]

Hello,

If the form was working before you made the changes, then something within the changes you've made is causing the issue. Revert the changes and check the information that your adding to determine (a) if it's in the correct location (b) the information being added is valid