payroll error ! need help !

 hi,

I have a serious problem! I wanted to rollback the payroll,but always prompt the following error.

HR_6881_HRPROC_ORA_ERR
SQLERRMC ORA-20001: Too many errors encountered while processing
ORA-06512: at "APPS.PY_ROLLBACK_PKG", line 3203
ORA-06512: at line 2

SQL_NO 478
TABLE_NAME py_rollback_pkg.rollback_payroll_action
APP-PAY-06881: Error ORA-20001: Too many errors encountered while processing
ORA-06512: at "APPS.PY_ROLLBACK_PKG", line 3203
ORA-06512: at line 2
has occurred in table py_rollback_pkg.rollback_payroll_action at location 478

Cause: an oracle error has occurred. The failure was reported on table py_rollback_pkg.rollback_payroll_action at location 478 with the error text ORA-20001: Too many errors encountered while processing