Notes/Domino 6 and 7 Forum : Panic with no error message

My Domino 6.0.1CF3 on w2k Server panic with no any message on Win2k Server and in NSD i have

############################################################
### FATAL THREAD 19/72 [ nserver:0770:0784]
### FP=042bf100, PC=606d90d4, SP=042bf0fc, stksize=4
Exception code: c0000005 (ACCESS_VIOLATION)
############################################################
@[ 1] 0x606d90d4 nnotes._ReadODSECLUpdateInfo@12+116 (42bf388,42bf324,42bf11c,0)
@[ 2] 0x606d86a6 nnotes._NetCheckAdminECL@12+86 (1da2,93e63e4,42bf39c,0)
@[ 3] 0x60892c1d nnotes._LookupNameInfo@112+2317 (1da2,93e63b8,42bf8bc,42bf8bc)
@[ 4] 0x608921fb nnotes._LookupABPIandKeys@112+651 (2,42bf73c,32,11b62f8)
@[ 5] 0x60891f64 nnotes._FindABPIandKeys@112+212 (42bf73c,32,11b62f8,60b80086)
@[ 6] 0x60891c2c nnotes._CheckABPublicInfo@112+268 (0,42bf874,42bf73c,32)
@[ 7] 0x601540fe nnotes._LookupABPI@8+638 (0,12f234c,15d5ff74,42bfde4)
@[ 8] 0x60153aef nnotes._Parse_DistName@8+143 (42bfde4,1,f01c18eb,42bfde4)
@[ 9] 0x60899c68 nnotes._AuthServerDialog@12+2152 (15d6020e,1,0,15d50000)
@[10] 0x600d02c5 nnotes._AuthStateMachine@4+213 (42bfde4,9c9,221b2ee4,0)
@[11] 0x60889aea nnotes._AUTHProcessNetbfr@12+186 (38440003,1001cee0,42bfea8,15d59190)
@[12] 0x10018de5 nserverl._DbServer@8+1221 (2f63005b,e3000002,0,25ed324)
@[13] 0x1002b018 nserverl._WorkThreadTask@8+1576 (3682fa4,0,3,38bfb10)
@[14] 0x100016cb nserverl._Scheduler@4+763 (0,38bfb10,0,107c334)
@[15] 0x6011e514 nnotes._ThreadWrapper@4+212 (0,107c334,38bfb10,0)
[16] 0x7c4e987c KERNEL32.SetThreadExecutionState+551

############################################################
### PASS 2 : FATAL THREAD with STACK FRAMES 19/72 [ nserver:0770:0784]
### FP=042bf100, PC=606d90d4, SP=042bf0fc, stksize=4
Exception code: c0000005 (ACCESS_VIOLATION)
############################################################
# ---------- Top of the Stack ----------
# 042bf0fc 00000000 042bf37c 606d86a6 042bf388 |....|.+...m`..+.|

Thank for help