ORA-26507: null master connection

Cause : The master connection handle was or became invalid.

Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts

Verify that the master connection is valid.

update : 24-05-2017

ORA-26507 - null master connection
ORA-26507 - null master connection

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    Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.