Db Connect Error

While upgrading from 4.0b TO 4.7 in SAP R/3 in shadow instance 01 , we r getting the follow. error which is attached as follows.which is nothing but log file.

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trc file: "dev_w21", trc level: 1, release: "620"
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*
* ACTIVE TRACE LEVEL 1
* ACTIVE TRACE COMPONENTS all, M
*
B
B Thu Mar 04 17:43:45 2004
B create_con (con_name=R/3)
B Loading DB library 'C:usrsapputexedbmssslib.dll' ...
B
B Thu Mar 04 17:43:47 2004
B Library 'C:usrsapputexedbmssslib.dll' loaded
B Version of 'C:usrsapputexedbmssslib.dll' is "620.02", patchlevel (0.1270)
B
B Thu Mar 04 17:43:48 2004
B New connection 0 created
M systemid 560 (PC with Windows NT)
M relno 6200
M patchlevel 0
M
M Thu Mar 04 17:43:49 2004
M patchno 674
M intno 20020600
M pid 2884
M
M ***LOG Q0Q=> tskh_init, WPStart (Workproc21 2884) [dpxxdisp.c 1028]
I MtxInit: -2 0 0
M
M Thu Mar 04 17:43:51 2004
M DpShMCreate: sizeof(wp_adm)16544(752)
M DpShMCreate: sizeof(tm_adm)1690816(8412)
M DpShMCreate: sizeof(wp_ca_adm)18000(60)
M DpShMCreate: sizeof(appc_ca_adm)6000(60)
M DpShMCreate: sizeof(comm_adm)192000(384)
M DpShMCreate: sizeof(wall_adm)(22440/34344/56/100)
M DpShMCreate: SHM_DP_ADM_KEY(addr: 058A0040, size: 1981584)
M DpShMCreate: allocated sys_adm at 058A0040
M DpShMCreate: allocated wp_adm at 058A0560
M DpShMCreate: allocated tm_adm_list at 058A4600
M DpShMCreate: allocated tm_adm at 058A4628
M DpShMCreate: allocated wp_ca_adm at 05A412E8
M DpShMCreate: allocated appc_ca_adm at 05A45938
M DpShMCreate: allocated comm_adm_list at 05A470A8
M DpShMCreate: allocated comm_adm at 05A470C0
M DpShMCreate: allocated ca_info at 05A75EC0
M DpShMCreate: allocated wall_adm at 05A75EC8
X EmInit: MmSetImplementation( 2 ).
X <ES> client 21 initializing ....
X Using implementation std
M <EsNT> Memory Reset enabled as NT default
X ES initialized.
M
M Thu Mar 04 17:43:52 2004
M calling db_connect ...
C
C Thu Mar 04 17:43:54 2004
C SQLOLEDB Provider Release:08.10.9031
C
C Thu Mar 04 17:43:56 2004
C CheckConnection: line 39141. hr: 0x80040e09 SELECT permission denied on object 'sysobjects', database 'UPG', owner 'dbo'.
C HandleOledbError [CheckConnection,line 39141]: Error/Message: (err 229, sev 0), SELECT permission denied on object 'sysobjects', database 'UPG', owner 'dbo'.
B ***LOG BY2=> sql error 0 performing CON [dblink#1 @ 419] [dblink 0419 ]
B ***LOG BY0=> <message text not available> [dblink#1 @ 419] [dblink 0419 ]
M ***LOG R19=> tskh_init, db_connect ( DB-Connect 000256) [thxxhead.c 1102]
M in_ThErrHandle: 1
M *** ERROR => tskh_init: db_connect (step 1, th_errno 13, action 3, level 1) [thxxhead.c 8437]
M
M Info for wp 21
M
M stat = 4
M reqtype = 5
M act_reqtype = -1
M tid = -1
M mode = 255
M len = -1
M rq_id = -1
M rq_source = 255
M last_tid = 0
M last_mode = 0
M rfc_req = 0
M report = > <
M action = 0
M tab_name = > <
M
M ************************************************** ***************************
M *
M * LOCATION SAP-Server upgrade_UPG_01 on host upgrade (wp 21)
M * ERROR tskh_init: db_connect
M *
M * TIME Thu Mar 04 17:43:56 2004
M * RELEASE 620
M * COMPONENT Taskhandler
M * VERSION 1
M * RC 13
M * MODULE thxxhead.c
M * LINE 8569
M * COUNTER 1
M *
M ************************************************** ***************************
M
M Entering TH_CALLHOOKS
M ThCallHooks: call hook >ThrSaveSPAFields< for event BEFORE_DUMP
M *** ERROR => ThrSaveSPAFields: no valid thr_wpadm [thxxrun1.c 672]
M *** ERROR => ThCallHooks: event handler ThrSaveSPAFields for event BEFORE_DUMP failed [thxxtool3.c 237]
M Entering ThSetStatError
M Entering ThReadDetachMode
M call ThrShutDown (1)...
M ***LOG Q02=> wp_halt, WPStop (Workproc21 2884) [dpnttool.c 346]

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after this error our disp+work does not get started in SAP R/3.

Waiting for ur reply ASAP on this issue.

rgds/........