2819326 - Trusted connect with user sapadm to SAPControl webservice on instance <SYSTEM NUMBER> of system (undefined) failed- Simple Diagnostic Agent

Error:

ERROR [MAI PFR 3] com.sap.solman.agent.mai.GenericMetricCollector collectForMetricGroup failed
com.sap.solman.agent.mai.api.CollectorException: SAPControl web service invocation failed
at com.sap.solman.agent.mai.http.ExtendedSAPControlWSCollector.getComponentList(ExtendedSAPControlWSCollector.java:209)
at com.sap.solman.agent.mai.http.ExtendedSAPControlWSCollector.collectForMetricGroup(ExtendedSAPControlWSCollector.java:202)
at com.sap.solman.agent.mai.GenericMetricCollector.collect(GenericMetricCollector.java:220)
at com.sap.solman.agent.mai.CollectJob.run(CollectJob.java:66)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
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:836)
Caused by: com.sap.solman.agent.core.error.SystemException: Trusted connect with user sapadm to SAPControl webservice on instance 01 of system (undefined) failed. 1. Add "service/admin_users = sapadm" to DEFAULT.PFL of the system and restart SAPControl (SAP Note 927637). 2. Check the s-bit of sapuxuserchk binaries (SAP Note 1932225, Unix only).

in the Simple Diagnostics Agent log files (agent.x.log)

• SAP Focused Run

Instance Status, Cannot connect to service, SAPControl , KBA , SV-FRN-INF-SDA , Simple Diagnostic Agent (SDA) , Problem