Thanks. That helped.
2015-10-08 16:00:40 26796 [ERROR] Fatal error: Can't change to run as user 'wfa' ; Please check that the user exists!
I wasn't aware that WFA requires a userid - wfa to be on the system.
We have a internal process that takes care of account mgmt that erases any non-standard accounts.
I'll figure out how to get wfa on it. But meanwhile, this resolved the issue for me.