Oracle Solution for Error ora-06559

ORA-06559: wrong datatype requested, string, actual datatype is string

What triggered the Error:

The sender put different datatype on the pipe than that being requested (package 'dbms_pipe'). The numbers are: 6 - number, 9 - char, 12 - date.

What should we do to fix it:

Check that the sender and receiver agree on the number and types of items placed on the pipe.