SQL6073N Add Database Partition operation failed

Hi,

when i try to to Add Database Partition by use the IBM API within my code,
then i get always the following message:
"SQL6073N Add Database Partition operation failed. SQLCODE = "-1005"."

I use the IBM API sqleaddn (AddNodeOptions_ptr, &sqlca); to add the database partition.

please can you explain to me what the mean of SQLCODE = "-1005", and how can i solve this issue?

Regards,
Hussein