WSTransformerPX Stage ("too many files open")

[mamir_30]

I am not understanding the following error:

APT_CombinedOperatorController(5),0: Fatal Error: Fatal: 0026`:`com.ascentialsoftware.wsclient.ServiceInvocationException: Service invocation exception: <ns1:Fault xmlns:ns1="http://schemas.xmlsoap.org/soap/envelope/">
<faultcode>soapenv:Server.userException</faultcode>
<faultstring>java.rmi.RemoteException: ICO0003E: com.ibm.connector2.ims.ico.IMSTCPIPManagedConnection@6ce6a0a1.connect() error. Failed to connect to host [tcpipsy3.cis.cat.com], port [10101]. [java.net.SocketException: Too many open files]</faultstring>
<detail/>
</ns1:Fault>
at com.ascentialsoftware.wsclient.OperationCall.handleRemoteException(OperationCall.java:369)
at com.ascentialsoftware.wsclient.OperationCall.invoke(OperationCall.java:274)
at com.ascentialsoftware.wsclient.WebService.callServiceInternal(WebService.java:1685)
at com.ascentialsoftware.wsclient.WebService.callService(WebService.java:1591)
at com.ascentialsoftware.wsclient.WebService.callService(WebService.java:1544)
at com.ascentialsoftware.wspack.Transformer.process(Transformer.java:105)
at com.ascentialsoftware.jds.StageFactory.runStage(StageFactory.java:544)
at com.ascentialsoftware.jds.StageFactory.runTransformer(StageFactory.java:361)

Any help is greatly appreciated.