Error has occurred message showed up and this was the detail.
java.lang.RuntimeException: haven.GOut$GLOutOfMemoryException: GL Error: 1285 (out of memory)
	at com.jogamp.common.util.awt.AWTEDTExecutor.invoke(AWTEDTExecutor.java:58)
	at jogamp.opengl.awt.AWTThreadingPlugin.invokeOnOpenGLThread(AWTThreadingPlugin.java:100)
	at jogamp.opengl.ThreadingImpl.invokeOnOpenGLThread(ThreadingImpl.java:205)
	at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:172)
	at javax.media.opengl.Threading.invoke(Threading.java:191)
	at javax.media.opengl.awt.GLCanvas.display(GLCanvas.java:483)
	at haven.HavenPanel.uglyjoglhack(HavenPanel.java:394)
	at haven.HavenPanel.run(HavenPanel.java:426)
	at java.lang.Thread.run(Unknown Source)
Caused by: haven.GOut$GLOutOfMemoryException: GL Error: 1285 (out of memory)
	at haven.GOut.glexcfor(GOut.java:99)
	at haven.GOut.checkerr(GOut.java:107)
	at haven.TexGL.create(TexGL.java:275)
	at haven.TexGL.glid(TexGL.java:308)
	at haven.TexGL$TexDraw.apply(TexGL.java:94)
	at haven.GLState$Applier.apply(GLState.java:472)
	at haven.GOut.apply(GOut.java:194)
	at haven.TexGL.render(TexGL.java:316)
	at haven.Tex.crender(Tex.java:92)
	at haven.Tex.crender(Tex.java:97)
	at haven.GOut.image(GOut.java:142)
	at haven.TextEntry.draw(TextEntry.java:87)
	at haven.Widget.draw(Widget.java:510)
	at haven.Widget.draw(Widget.java:515)
	at haven.Widget.draw(Widget.java:510)
	at haven.Widget.draw(Widget.java:515)
	at haven.LoginScreen.draw(LoginScreen.java:336)
	at haven.Widget.draw(Widget.java:510)
	at haven.Widget.draw(Widget.java:515)
	at haven.RootWidget.draw(RootWidget.java:80)
	at haven.UI.draw(UI.java:147)
	at haven.HavenPanel.redraw(HavenPanel.java:280)
	at haven.HavenPanel$1.display(HavenPanel.java:92)
	at jogamp.opengl.GLDrawableHelper.displayImpl(GLDrawableHelper.java:588)
	at jogamp.opengl.GLDrawableHelper.display(GLDrawableHelper.java:572)
	at javax.media.opengl.awt.GLCanvas$7.run(GLCanvas.java:1054)
	at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1034)