PLS-00306

 Dear All,

I get PLS-00306 when execute the store procedure.  Mentioning below is my store procedure

This store procedure , i am passing the session number and getting the Available channel number to make the outgoing call from my application.

The procedure performed as per my expectation but suddenly today(11-Mar-2010) i received the error message "

  

 java.sql.SQLException: ORA-06550: line 1, column 7:

PLS-00306: wrong number or types of arguments in call to 'SP_CHANUPD'

ORA-06550: line 1, column 7:

PL/SQL: Statement ignored.

KINDLY HELP THE POSSIBILITIES OF THE ERROR. ALSO DO YOU KNOW , ANY WHERE FROM ORACLE LOG I CAN SEE WHAT HAPPENED?  THANK YOU.