Recoverable fatal error: Argument 2 passed to t() must be an array, string given,

Building out a new site, D7.12, Commerce 7.x-1.2, Commerce Post Affiliate Pro 7.x-1.x-dev Mar 05.

CPAP module is installed, communicating with PAP server and most things seem to be working.

Getting an error when trying to edit a user:
Recoverable fatal error: Argument 2 passed to t() must be an array, string given, called in /home/sdtdev4/public_html/sites/all/modules/commerce_post_affiliate_pro/commerce_post_affiliate_pro.module on line 272 and defined in t() (line 1478 of /home/sdtdev4/public_html/includes/bootstrap.inc).

I have been reading API docs to find how the line of code should be with no joy yet. Can you provide any pointers to help us past this?

Ron D.