3556556 - Issue starting SUM: HTTP server exits with 10

The SUM is registered to SAP host agent by the correct command SUMSTART according to the SUM guide, but there is an error returns to the command:

Issue starting SUM
Internal Server Error
Operation  [id=0AFFXXXXXXXXXXXE2609F3AE] terminated with errors : 127 ()
description:OS Command
++ Persisting server configuration.
FATAL ERROR: Channel error: prepare server failed with rc=-1: Address already in use
++ Starting trusted connection with hostagent socket '_lmsl_sumabap_<SID>' ...
++ Starting trusted connection with internal socket '_lmsl_sumabap_internal_<SID>' ...
HTTP server exits with 10.
exitcode:10

The errors in host agent work trace sapstartsrv.log is as below:

[Thr 1XXXXX] *** ERROR => Operation::ExecuteNextCommand(): Command OS Command terminated with errorcode 10 [Operation.cp 357]
[Thr 1XXXXX] Output of command OS Command -->
[Thr 1XXXXX]   ++ Persisting server configuration.
[Thr 1XXXXX]   
[Thr 1XXXXX]   FATAL ERROR: Channel error: prepare server failed with rc=-1: Address already in use
[Thr 1XXXXX]   ++ Starting trusted connection with hostagent socket '_lmsl_sumabap_<SID>' ...
[Thr 1XXXXX]   ++ Starting trusted connection with internal socket '_lmsl_sumabap_internal_<SID>' ...
[Thr 1XXXXX]   HTTP server exits with 10.
[Thr 1XXXXX] <-- Output of command OS Command
[Thr 1XXXXX] *** ERROR => Operation Worker Thread[id=0AFFFAXXXXXX2831992C233AE]: Command execution failed [Operation.cp 503]
[Thr 1XXXXX] *** ERROR => Error: sock 27; error 111 (Connection refused)
 (111: Connection refused) [sixx.cpp     127]
[Thr 1XXXXX] *** ERROR => Connection failed [Communicatio 302]

Read more...

system upgrade

SAP NetWeaver 2004 ; SAP NetWeaver 7.0 ; SAP NetWeaver 7.1 ; SAP NetWeaver 7.2 ; SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5 ; SAP S/4HANA 1610 ; SAP S/4HANA 1709 ; SAP S/4HANA 1809 ; SAP S/4HANA 1909 ; SAP S/4HANA 2020 ; SAP S/4HANA 2021 ; SAP S/4HANA 2022 ; SAP S/4HANA 2023 ; SAP S/4HANA 2025 ; SAP S/4HANA, on-premise edition 1511 ; SAP enhancement package 1 for SAP NetWeaver 7.0 ; SAP enhancement package 1 for SAP NetWeaver 7.3 ; SAP enhancement package 2 for SAP NetWeaver 7.0 ; SAP enhancement package 3 for SAP NetWeaver 7.0

Hostagent, SUMSTART, code, 127, HTTP server, HTTPS, 10, lmsl_sumabap , KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , Problem