My confirm page has two includes to virtually the same file (NOT SURE WHY).
<?php require_once("../webassist/form_validations/wavt_validatedform_php.php"); ?>
<?php require_once("../WA_ValidationToolkit/WAVT_ValidatedForm_PHP.php"); ?>
I commented out the second one, and the confirm page now works.
It appear the only difference between the two is the last line:
Do I have both files included due to an extension upgrade? If someone could let me know why I may have both and one is caps and the other not, it would be helpful troubleshooting similar eCart / validation toolkit issues in the future.