I did try to uninstall the NCM plugin , delete the deviceexpert database and reinstall but the error persists.
[09:49:35:599]|[09-08-2015]|[com.adventnet.workengine.service.WorkEngineService]|[INFO]|[10]: The WorkEngine for ncm is Null|
[09:49:35:693]|[09-08-2015]|[SYSOUT]|[INFO]|[10]: NCM Plugin Installation :UserType : T, Days : 28, CompanyName : AdventNet ProductVersion : 5.9.8, Count :50|
[09:49:35:693]|[09-08-2015]|[com.adventnet.persistence.Row]|[WARNING]|[10]: The column DEVICE_GROUP_ID in NCMCMRuleDGMap is given a value that is instance of java.lang.Integer that contradicts with BIGINT specified in the data-dictionary|
[09:49:35:865]|[09-08-2015]|[com.adventnet.mfw.Server]|[INFO]|[10]: DB Server status number :: 1|
[09:49:35:865]|[09-08-2015]|[com.adventnet.mfw.Server]|[INFO]|[10]: Server status number :: 2|
[09:49:35:865]|[09-08-2015]|[com.adventnet.mfw.Server]|[INFO]|[10]: Updateing status ::::: 2|
[09:49:35:865]|[09-08-2015]|[SYSOUT]|[INFO]|[10]: Server started in :: [16153 ms]|
[09:49:36:709]|[09-08-2015]|[com.me.tools.zcutil.ZCUtil]|[INFO]|[12]: Exception while invoking METrack : java.net.ConnectException: Connection refused: connect|
[09:49:36:709]|[09-08-2015]|[SYSOUT]|[INFO]|[12]: java.lang.NullPointerException|
[09:49:36:709]|[09-08-2015]|[SYSOUT]|[INFO]|[12]:
at com.me.tools.zcutil.ZCUtil.addNewCustomer(ZCUtil.java:448)|
[09:49:36:709]|[09-08-2015]|[SYSOUT]|[INFO]|[12]:
at com.me.tools.zcutil.METrack.appStart(METrack.java:40)|
[09:49:36:709]|[09-08-2015]|[SYSOUT]|[INFO]|[12]:
at com.me.tools.zcutil.METrack.run(METrack.java:16)|
[09:49:36:709]|[09-08-2015]|[SYSOUT]|[INFO]|[12]:
at java.lang.Thread.run(Unknown Source)|