2841879 - SWPM Doesn't open with error "Exit status of child: 3 Not closing window (Exit State: 3; exitOnError: 0)" on Windows OS

SWPM Doesn't open with the following error:

Program is starting... Please wait!

INFO 2019-09-23 15:09:37.050 (mainThread) [sixxcreate.cpp:347]
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Initial log directory: C:\Users\<user>\.sapinst\DESKTOP\1628
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SAPinst build information:
--------------------------
Version: 749.0.77
Build: 1938912
Compile time: Aug 11 2019 - 17:00:17
Make type: optU
Codeline: 749_REL
Platform: ntamd64
Kernel build: 749, patch 722, changelist 1939189
SAP JRE build: SAP Java Server VM (build 8.1.055 10.0.2+000, May 6 2019 13:12:21 - 81_REL - optU - windows amd64 - 6 - bas2:315134 (mixed mode))
SAP JCo build: 3.0.19
SL-UI version: 2.6.52
SAP UI5 version: 1.60.9
Exe directory: C:\Users\<user>\AppData\Local\Temp\sapinst_exe.3572.1569247739

SAPinst process information:
----------------------------
Pid: 1628

INFO 2019-09-23 15:09:42.223 (DESKTOP\<user>) (SLPCommunicator) [SLPMonitoringStatemachine.cpp:1402]
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Open your browser and paste the following URL address to access the GUI
https://DESKTOP-.localdomain:4237/sapinst/docs/index.html
Logon users: [DESKTOP\<user>]
********************************************************************************

INFO 2019-09-23 15:09:42.223 (DESKTOP\<user>) (SLPCommunicator) [synxcsymgt.cpp:192] CSySystemMgtImpl::openUrlWithBrowser()
Opening url 'https://DESKTOP.localdomain:4237/sapinst/docs/index.html'

INFO 2019-09-23 15:09:50.527 (DESKTOP\<user>) (startInstallation) [SLPSelftestHandler.cpp:156]
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ERROR in Selftest. Return code: 3
Connecting to DESKTOP.localdomain failed.
You can use SAPINST_GUI_HOSTNAME to override the webserver hostname for the GUI.
********************************************************************************

INFO 2019-09-23 15:09:50.527 (DESKTOP\<user>) (startInstallation) [SLPSelftestHandler.cpp:157]
Full output of selftest:
Connecting to: https://DESKTOP.localdomain:4237
 executing: GET /sapinst/slp/whoami HTTP/1.1
java.net.UnknownHostException: DESKTOP- .localdomain
Exit code: 3

INFO 2019-09-23 15:09:50.620 (DESKTOP \<user>) (SLPCommunicator) [CWebDispatcherHandlerBase.cpp:379]
*******************************************************************************
Leaving Web Dispatcher log files
 in C:/Users/<user>/.sapinst/DESKTOP/1628.
********************************************************************************

Exit status of child: 3
 Not closing window (Exit State: 3; exitOnError: 0).

• SWPM
• Windows OS

KBA , BC-INS-SWPM , Installation with Software Provisioning Manager , Problem