SAP IDM 8 Running initial ABAP load

Hi,

Friends,

I am working on SAP IDM 8  & while running the job for initial ABAP load, getting the following error.

Error occured in JCo3Proxy.logonSapi(String):

java.lang.Throwable: Initialization of destination ERT300 failed: Connect to message server host failedConnection parameters: TYPE=B DEST=ERT300 MSHOST=XXXXXXXXX R3NAME=ERT GROUP=PUBLIC PCS=1LOCATION CPIC (TCP/IP) on local host XXXXXXXX with UnicodeERROR service '?' unknownTIME Sat Oct 31 00:20:26 2015RELEASE 720COMPONENT NI (network interface)VERSION 40RC -3DETAIL NiErrSetCOUNTER 2

Any suggestions in this regard.

BR,

Mohammed