2963518 - STARTSAP_PUPG : process igswd.EXE IGS Watchdog not running

While upgrading with SUM (Software Update Manager) DMO (Database Migration Option), SUM stops at phase MAIN_UPTRANS/STARTSAP_PUPG with below error:

STARTSAP.LOG

1EETQ399 Last error code set is: Action START failed for OSPSAP/00
1EETQ399X('sapcontrol.exe error at StartWait: FAIL: process igswd.EXE IGS Watchdog not running').
1EETQ399X
1EETQ399XSystem start failed
1EETQ399XEarlier, validating the profile failed, see INSTANCE.OUT
1EETQ203 Upgrade phase "STARTSAP_PUPG" aborted with errors ("20200827191054")

SAPup.ECO

EXECUTING F:\usr\sap\OSP\D00\exe\sapcontrol.exe -format script -prot PIPE -host OSPSAP -nr 00 -function GetProcessList

27.08.2020 19:10:54
GetProcessList
OK
0 name: disp+work.EXE
0 description: Dispatcher
0 dispstatus: GREEN
0 textstatus: Running
0 starttime: 2020 08 27 18:41:23
0 elapsedtime: 0:29:31
0 pid: 8992
1 name: igswd.EXE
1 description: IGS Watchdog
1 dispstatus: GRAY
1 textstatus: Stopped
1 starttime: 
1 elapsedtime: 
1 pid: -1
2 name: gwrd
2 description: Gateway
2 dispstatus: GREEN
2 textstatus: Running
2 starttime: 2020 08 27 18:41:26
2 elapsedtime: 0:29:28
2 pid: 11740
3 name: icman
3 description: ICM
3 dispstatus: GREEN
3 textstatus: Running
3 starttime: 2020 08 27 18:41:26
3 elapsedtime: 0:29:28
3 pid: 8684

SAP Netweaver

STARTSAP, IGS, igswd, process igswd.EXE IGS Watchdog not running, IGS watchdog, STARTSAP_PUPG, StartWait , KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , BC-FES-IGS , Internet Graphics Server , Problem