collating format unknown

  Explanation:  Oracle Rdb understands the internal format of  the
  collating  sequences  defined in NCS.NLB.  Apparently there is a
  new format in use that Oracle Rdb does not know about.   Perhaps
  you are using an obsolete version of Oracle Rdb.

  User Action:  Contact your  Oracle  support  representative  for
  assistance.   If  the problem is not that an obsolete version of
  Oracle Rdb is in use, then you will need to  provide  the  files
  BUG.MAR    and    BUG.NCS    obtained    from    the    command:
  NCS/MAC=BUG/OUT=BUG/EXT=<collating_name>     <library>     where
  <collating_name>  is the name of the collating sequence that you
  selected from the library indicated by <library> or from NCS.NLB
  if you did not specify a library.