B4J Question Error to do with rootpane, mainpain and other panes [Solved]

    MainForm = Form1
    MainForm.RootPane.LoadLayout("RootLayout") 'Load the layout file.

    Main.RootPane.RemoveAllNodes
    Main.RootPane.LoadLayout("playgame") 'Load the layout file

form.Stylesheets.Add(File.GetUri(File.DirAssets, "RedButton.css"))
    form.Show

What is the best selling album of all time from 1976 to 2018?
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Error occurred on line: 88 (PLAYGAME)
java.lang.NullPointerException
at anywheresoftware.b4j.objects.Form.getStylesheets(Form.java:292)
at b4j.quiz.playgame._getquestion(playgame.java:245)
at b4j.quiz.playgame._start(playgame.java:80)
at b4j.quiz.joingame._timer2_tick(joingame.java:774)
at jdk.internal.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:632)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:237)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:167)
at jdk.internal.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:91)
at anywheresoftware.b4a.shell.ShellBA.raiseEvent2(ShellBA.java:98)
at anywheresoftware.b4a.objects.Timer$TickTack$1.run(Timer.java:118)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
at java.base/java.lang.Thread.run(Thread.java:834)

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