An error occurred modifying an attribute value. Invalid name (db2a)

I have Netware 6.5 SP7 and Groupwise SP6 I used Consoleone when I tried
to create a user named Allison I got the Groupwise error message An
error occurred modifying an attribute value. Invalid name (db2a). I
create another user Sharon right after that with no problems. I have
deleted and recreated Allison several times with the same result. I even
tried adding a character to her name. She does have the same last name
as a current user and I added a letter to that with the same result.

Could the user name be stuck in GroupWise somewhere or what could cause
this error?