Oracle Message PCB-00580 - Previous use of host variable string uses different indicator

ERRORPrevious use of host variable string uses different indicator
CAUSEWithin a PL/SQL statement, a host variable was used with two different indicator variables or was used with an indicator variable in one instance and without an indicator in another instance.
ACTIONChange all references to the host variable so that they all use the same indicator variable or all use no indicator variable.