Unable to start Cognos with Windchill PDMLink

• Facing issues while launching or starting cognos for running structure reports for BOM.
• Unable to start Cognos with error in Windchill PDMLink

ERROR  com.cognos.pogo.contentmanager.coordinator.ActiveCMControl [Timer-42] NA DPR-CMI-4007 Unable to perform an active Content Manager election on the local IP node. For more information, see the dispatcher and Content Manager detailed logs. Ensure that the local Content Manager service is started.
com.cognos.pogo.bibus.CommandExecutionIOException: Failed to send HTTP request or read HTTP response
                at com.cognos.pogo.bibus.BIBusCommand.handleDefaultException(BIBusCommand.java:372) ~[p2pd.jar:?]


Caused by: java.io.IOException: Failed to send HTTP request or read HTTP response
                at com.cognos.pogo.http.ServerConnection.executeMethod(ServerConnection.java:800) ~[p2pd.jar:?]
                at com.cognos.pogo.http.ServerConnection.sendRequest(ServerConnection.java:254) ~[p2pd.jar:?]

Caused by: java.net.ConnectException: Connection refused (Connection refused)
                at java.net.Socket.connect(Socket.java:666) ~[?:1.8.0]
                at java.net.Socket.connect(Socket.java:606) ~[?:1.8.0]
                at java.net.Socket.<init>(Socket.java:469) ~[?:1.8.0]
                at java.net.Socket.<init>(Socket.java:314) ~[?:1.8.0]

ERROR  com.cognos.pogo.reportservice.ProcessManager [Timer-40] NA External Report Server process BmtMDProviderMain cannot be started
java.io.IOException: Cannot run program "/windchill/ptc/Windchill_11.x/Reporting/bin/BmtMDProviderMain" (in directory "/windchill/ptc/Windchill_11.x/Reporting/bin"): error=24, Too many open files
                at java.lang.ProcessBuilder.start(ProcessBuilder.java:1059) ~[?:?]
                at java.lang.Runtime.exec(Runtime.java:631) ~[?:?]
                at com.cognos.pogo.util.RuntimeEnvironment.startProcess(RuntimeEnvironment.java:51) ~[p2pd.jar:?]