erroneous error: The credentials provided have already been used. Try with different credentials

[ajoslin103]

I'm getting the error (on UserController:store) The credentials provided have already been used. Try with different credentials

But there is no row in the database with this email or username

my log shows this:
[2015-06-10 13:34:13] production.INFO: select * from tbl_users where (email = '[email protected]') {"bindings":["[email protected]"],"time":1.02,"name":"MySQL"} []
[2015-06-10 13:34:13] production.INFO: select * from tbl_users where (username = 'jjones') {"bindings":["jjones"],"time":0.81,"name":"MySQL"} []

Where might I look for the problem?

[ajoslin103]

Embarrassing....

Too many servers -- updating code on one and watching database on another

All is well...