monitor home directory is not valid

  Explanation:  The directory from which the monitor  was  invoked
  is  no longer valid.  Typically, this occurs when the monitor is
  invoked by the installation IVP  procedure,  which  subsequently
  deletes  the invocation directory.  However, this can also occur
  during day-to-day operations whenever directories  are  deleted.
  When  the  monitor home directory does not exist, the monitor is
  unable to invoke other server processes, such  as  the  database
  recovery  process  ("DBR")  or  the AIJ Backup Server ("ABS") to
  name a few.  When the monitor home directory does not exist, the
  server processes will be unable to create temporary work files.

  User Action:  Stop the monitor, and  restart  it  from  a  valid
  directory.