Aplicativo Manifestador de Nota Fiscal COM ERRO

Boa noite, venho encontrando esse erros nos computadores aqui na ultilização do MDE Do site da fazenda.sp.br,
 eis o seguinte erro;
Não foi Possivel Carregar o recurso
http://wwww.mde.fazenda.sp.gov.br/aplicativo/amissorMDe.jnlp
com.sun.deploy.net.FailedDownloadException: Não é possível carregar o recurso: http://www.mde.fazenda.sp.gov.br/aplicativo/emissorMDe.jnlp
at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
at com.sun.deploy.net.DownloadEngine.downloadResource(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source)
at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.launch(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main.access$000(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)