[Plugin: Onlywire Multi Autosubmitter] OnlyWire WordPress plugin error

Every time I try to submit using the WordPress plugin I get the following error:

Information
Last post submitted to OnlyWire: Warrington 3 year old toddler launches sponsored swim to raise money for local baby unit.
Account used: #5
Returncode from OnlyWire:
Not Authorized: You have reached this page because your API authentication failed. Usually this happens due to a bad username/password. Please check your user name and password and try again.

However I know my username and password are correct. I only have one OnlyWire account entered, but the message says it is using Account 5. Is this a bug?

Thanks for your help. It’s a great tool when it works.

http://wordpress.org/extend/plugins/onlywire-multi-autosubmitter/