It doesnt look like you have uploaded the below Confirm spry js file or the link to it is incorrect?
SpryValidationConfirm.js
It's linked up with ../ infront of it when all your other spry js files don't have this infront of them.
../SpryAssets/SpryValidationConfirm.js
The link to your confirm css file is also debatable:
../SpryAssets/SpryValidationConfirm.css
Can you check to see if you have uploaded them and the links to them are correct?
At a guess I would say both files need to be in the same folder that your other spry js files are in. If they are then get rid of the ../ which are infront of the links.