Oracle Message PLS-00484 - redundant exceptions string and string must appear in same exception handler

ERRORredundant exceptions string and string must appear in same exception handler
CAUSEUsing the EXCEPTION_INIT pragma, different exceptions were initialized to the same Oracle error number; then, they were referenced in different exception handlers within the same exception-handling part. Such references conflict.
ACTIONRemove one of the exceptions or initialize it to a different Oracle error number.