[Seneca650]

Tengo instalado Jd 2 en Ubuntu 18.04 y ha estado funcionando bien hasta que tuve que reinstalar y creo que el problema está en Java. Que versión me aconsejais que instale. He probado con la ultima JDK 12 , ahora tengo JDK11.04 lts. He probado el JRE 8 y tampoco. Los problemas que tengo son:
*El menu herramientas aparece desactivado
*Dice directorio descargas no válido ( a pesar de cambiiarlo manualmente ya que en explorar tampoco me lo permite)
* No conecta con servidor
Que versión se Java me aconsejais JRE, JDK y que versión??
Formateo y reistalo y funviona todo bien hasta que reinicio al reiniciar vuelve aparecer el fallo
Gracias un saludo

[Seneca650]

org.jdownloader.extensions.StartException: Tray isn't supported!
at org.jdownloader.gui.jdtrayicon.TrayExtension.start(TrayExtension.java:123)
at org.jdownloader.extensions.AbstractExtension.setEnabled(AbstractExtension.java:79)
at org.jdownloader.gui.jdtrayicon.TrayConfigPanel$1.onConfigValueModified(TrayConfigPanel.java:76)
at org.jdownloader.gui.jdtrayicon.TrayConfigPanel$1.onConfigValueModified(TrayConfigPanel.java:71)
at org.appwork.storage.config.events.ConfigEventSender.fireEvent(ConfigEventSender.java:58)
at org.appwork.storage.config.events.ConfigEventSender.fireEvent(ConfigEventSender.java:44)
at org.appwork.utils.event.Eventsender.fireEvent(Eventsender.java:198)
at org.appwork.storage.config.handler.KeyHandler.fireEvent(KeyHandler.java:210)
at org.appwork.storage.config.handler.KeyHandler.setValue(KeyHandler.java:744)
at org.appwork.storage.config.handler.StorageHandler.invoke(StorageHandler.java:776)
at com.sun.proxy.$Proxy48.setEnabled(Unknown Source)
at org.jdownloader.extensions.AbstractExtension.init(AbstractExtension.java:314)
at jd.gui.swing.jdgui.JDGui.<init>(JDGui.java:239)
at jd.gui.swing.jdgui.JDGui.<init>(JDGui.java:154)
at jd.gui.swing.jdgui.JDGui$35.edtRun(JDGui.java:1692)
at jd.gui.swing.jdgui.JDGui$35.edtRun(JDGui.java:1688)
at org.appwork.utils.swing.EDTHelper.run(EDTHelper.java:119)
at org.appwork.utils.swing.EDTHelper.start(EDTHelper.java:154)
at org.appwork.utils.swing.EDTHelper.waitForEDT(EDTHelper.java:168)
at org.appwork.utils.swing.EDTHelper.getReturnValue(EDTHelper.java:100)
at jd.gui.swing.jdgui.JDGui.init(JDGui.java:1696)
at jd.SecondLevelLaunch$12.edtRun(SecondLevelLaunch.java:1003)
at jd.SecondLevelLaunch$12.edtRun(SecondLevelLaunch.java:993)
at org.appwork.utils.swing.EDTHelper.run(EDTHelper.java:119)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java: 76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

Me ocurre exactamente lo mismo!!!