java.sql.SQLException: Connection refused. Check that the hostname and port is correct, and that the postmaster is running with the -i flag, which enables TCP/IP networking. [stats: 000,000 (00/00) -000,146]
	at org.logicalcobwebs.proxool.ConnectionPool.throwSQLException(Unknown Source)
	at org.logicalcobwebs.proxool.ConnectionPool.getConnection(Unknown Source)
	at org.logicalcobwebs.proxool.ConnectionPool.getConnection(Unknown Source)
	at org.logicalcobwebs.proxool.ProxoolDriver.connect(Unknown Source)
	at java.sql.DriverManager.getConnection(DriverManager.java:582)
	at java.sql.DriverManager.getConnection(DriverManager.java:154)
	at org.exolab.castor.jdo.engine.DatabaseRegistry.createConnection(Unknown Source)
	at org.exolab.castor.jdo.engine.TransactionContextImpl.getConnection(Unknown Source)
	at org.exolab.castor.persist.TransactionContext.query(Unknown Source)
	at org.exolab.castor.jdo.engine.OQLQueryImpl.execute(Unknown Source)
	at org.exolab.castor.jdo.engine.OQLQueryImpl.execute(Unknown Source)
	at org.exolab.castor.jdo.engine.OQLQueryImpl.execute(Unknown Source)
	at com.ididactics.modules.Util.getProvider(Util.java:52)
	at com.ididactics.modules.Util.loadProvider(Util.java:37)
	at com.ididactics.modules.screens.Default.doBuildTemplate(Default.java:168)
	at com.ididactics.modules.screens.Register.doBuildTemplate(Register.java:16)
	at org.apache.turbine.modules.screens.VelocitySecureScreen.doBuildTemplate(VelocitySecureScreen.java:103)
	at org.apache.turbine.modules.screens.TemplateScreen.doBuild(TemplateScreen.java:129)
	at org.apache.turbine.modules.Screen.build(Screen.java:99)
	at org.apache.turbine.modules.ScreenLoader.eval(ScreenLoader.java:129)
	at org.apache.turbine.modules.layouts.VelocityOnlyLayout.doBuild(VelocityOnlyLayout.java:98)
	at org.apache.turbine.modules.Layout.build(Layout.java:91)
	at org.apache.turbine.modules.LayoutLoader.exec(LayoutLoader.java:123)
	at org.apache.turbine.modules.pages.DefaultPage.doBuild(DefaultPage.java:166)
	at org.apache.turbine.modules.Page.build(Page.java:90)
	at org.apache.turbine.modules.PageLoader.exec(PageLoader.java:123)
	at org.apache.turbine.Turbine.doGet(Turbine.java:447)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.valves.RequestFilterValve.process(RequestFilterValve.java:336)
	at org.apache.catalina.valves.RemoteAddrValve.invoke(RemoteAddrValve.java:131)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:601)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
	at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
	at java.lang.Thread.run(Thread.java:619)