I got the above message when testing my SFDC connection in OIC recently.
As the message states, I need to reset my security token in SFDC.
This I do - by clicking on Settings - Reset My Security Token
The new token is then emailed to me from SFDC.
I now need to taken that token and add it as a suffix to the SFDC user password in my OIC SFDC Connection definition.
That's it - problem solved!