Two Turnitin IDs for one user

A student was getting this error message when she tried to submit her assignment to the Turnitin Activity on the CCLE class site: 
 “Uploading user information failed because user email was changed to an address that is already associated with an account. UID : *********- Old Email” *****@ucla.edu – New-Email" *****@g.ucla.edu." 
 Note that the upload will fail for both the student and the instructor as both face same issue. 
 Try contacting TurnItIn support by reading http://ucla.in/2bjuGGE