Message Oracle PCB-00205 - Cannot use PIC N or PIC G variable in PL/SQL when NLS_LOCAL=YES

ERRORCannot use PIC N or PIC G variable in PL/SQL when NLS_LOCAL=YES
CAUSEA PIC N or PIC G variable was used in an embedded PL/SQL block when the precompiler option NLS_LOCAL=YES was used. A PIC N or PIC G variable is not supported in this situation.
ACTIONDo not use the PIC N or PIC G variable within the PL/SQL block or use precompiler option NLS_LOCAL=NO.