Panic in SCO 5.0

It happened twice this day. Suddenly SCO server display next message:

PANIC ktrap -kernel mode trap type 0X000000E
cannot dump 262045 pages to dump dev hd(1/41) space for only 131072 pages
Dump not completed

Then, server just wait to turn it off.

Why is it happening?

This problem could of Heavy disk Usage
try
a) by increasing SWAP space
use swapadd
or for more details check out man swapadd

  b\)    by cleaning  disk ie., run any disk managment package