Code: ORA-06534
Description:
 Cannot access Serially Reusable package string
Cause:
 The program attempted to access a Serially Reusable package in PL/SQL
called from SQL context (trigger or otherwise). Such an access is currently
unsupported.
Action:
 The program attempted to access a Serially Reusable package in PL/SQL
called from SQL context (trigger or otherwise). Such an access is currently
unsupported.