3349467 - SAP Cloud Connector - Cloud Connector UI is inaccessible after restoring the backup

After upgrading the cloud connector to latest version and restore the backup file from old version. when restart the cloud connector (SCC)

the SCC UI is inaccessible.  the below error shows in the SCC ljs_trace.log.

2023-06-14 00:19:26,396 -0500#ERROR#com.sap.scc.config#pool-1-thread-3#          #Potential config file corruption, failed to load /opt/sap/scc/scc_config/xx.xxx.hana.ondemand.com/937xxxxx-xxxxx-xxxxx-xxxxx-xxxxxxxxxxxx/backends.xml
com.sap.scc.servlets.FatalSccException: XML document structures must start and end within the same entity.
    at com.sap.scc.config.ConfigDataLoader.loadPlain(ConfigDataLoader.java:113)
    at com.sap.scc.config.ConfigDataLoader.preLoad(ConfigDataLoader.java:65)
    at com.sap.scc.config.ConfigDataLoader.load(ConfigDataLoader.java:51)
    at com.sap.scc.config.MappingManager.restoreBackends(MappingManager.java:81)
    at com.sap.scc.config.MappingManager.restore(MappingManager.java:54)
    at com.sap.scc.config.AccountConfiguration.refresh(AccountConfiguration.java:282)
    at com.sap.scc.config.AccountConfiguration.initialize(AccountConfiguration.java:274)
    at com.sap.scc.config.SccConfig.createAccountInternal(SccConfig.java:1052)
    at com.sap.scc.config.SccConfig.lambda$loadAccounts$0(SccConfig.java:760)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:838)
Caused by: org.xml.sax.SAXParseException: XML document structures must start and end within the same entity.
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:262)
    at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:339)
    at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:129)
    at com.sap.scc.config.ConfigDataLoader.loadPlain(ConfigDataLoader.java:104)
    ... 13 common frames omitted

• Cloud Connector 2.14.2 - 2.15.2

Cloud connector, cloud connector URL not reachable,  is inaccessible, restore, backup , KBA , BC-MID-SCC , SAP Cloud Connector On-Demand/On-Premise Connectivity , Problem