SERVER 3.1.1.3 DOWN

Hi .
Has anyone else seen this error?
I'm running ADSM server 3.1.1.3 (aix 4.3.1) and getting server down and
messages as follows

ANR7834S Thread 32 (tid 20fe) terminating on signal 11 (Segmentation
violation).
ANR7834S GPR  0: 0x00000024,   1: 0x30874430,   2: 0x300d3100,   3:
0x00000000
ANR7834S GPR  4: 0x00737320,   5: 0x4e616d65,   6: 0x000000bc,   7:
0x30828bf5
ANR7834S GPR  8: 0x0000002f,   9: 0x30828bf4,  10: 0x00000000,  11:
0x000034e0
ANR7834S GPR 12: 0x30613794,  13: 0x522e4c4e,  14: 0x4b060614,  15:
0x0067161b
ANR7834S GPR 16: 0x01000000,  17: 0x00000002,  18: 0x90024900,  19:
0x00020000
ANR7834S GPR 20: 0x00003000,  21: 0x00003000,  22: 0x30828c13,  23:
0x30828c1b
ANR7834S GPR 24: 0x00008000,  25: 0x30828bfb,  26: 0x30828bf4,  27:
0x00874cc0
ANR7834S GPR 28: 0x30826bf4,  29: 0x3084d000,  30: 0x103e5120,  31:
0x30828bf4
  0x10353A4C HtUrl2Context
  0x1035AB6C htExpandUrl
  0x103BEB40 SmHttpCommandThread
  0x10006878 StartThread
  0xD02111D4 _pthread_body
ANR7833S ADSM thread 1 terminated in response to program abort.
.
.
.
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ANR7833S ADSM thread 35 terminated in response to program abort.
/usr/lpp/adsmserv/bin/rc.adsmserv[19]: 14452 IOT/Abort trap(coredump)

This errors have ocurring when i have backuping.

Many thanks in advance

Taketoshi Ide