1519498 - Errror [repo_proxy 13] SessionFacade::openSession in the Report Conversion tool.

When any user except 'administrator' tries to use the Report Conversion Tool, gets the following error -

[repo_proxy 13] SessionFacade::openSession - (com.crystaldecisions.sdk.exception.SDKServerException:Enterprise authentication could not log you on. Please make sure your logon information is correct. (FWB00008) cause:com.crystaldecisions.enterprise.ocaframework.idl.OCA.oca_abuse: IDL:img.seagatesoftware.com/OCA/oca_abuse:3.2 detail:Enterprise authentication could not log you on. Please make sure your logon information is correct. (FWB 00008) The server supplied the following details: OCA_Abuse exception 10499 at [.\exceptionmapper.cpp : 67] 42040 {} ...Enterprise authentication could not log you on. Please make sure your logon information is correct. (FWB 00008) Unknown user ) at com.bo.repo_proxy.SessionFacade.openSession(Unknown Source) at com.bo.migration.MigrationApp.(MigrationApp.java:416) at com.bo.migration.MigrationTool.login(MigrationTool.java:441) at com.bo.migration.MigrationTool.(MigrationTool.java:139) at com.bo.migration.MigrationTool.main(MigrationTool.java:567)