CRASH WHEN MINING

Hi I am crashing when minWindows 10 (x64) 10.0 Java: 1.8.0_111 amd64 0.8.1_32 -H:4096 -D:3072 (Steam)
Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz, Z97-PRO GAMER, 32706 MB (4260 MB Heap)
AMD Radeon HD 7800 Series 20161204000000.000000-000 21.19.384.0
______________________________________________________________________
Error occurred during application-update (25)
java.lang.IllegalStateException: Scene graph is not properly updated for rendering.
State was changed after rootNode.updateGeometricState() call.
Make sure you do not modify the scene from another thread!
Problem spatial name: TECHNICAL
at com.jme3.scene.Spatial.checkCulling(Spatial.java:360)
at commons.c.a(SourceFile:538)
at commons.c.a(SourceFile:551)
at commons.c.renderScene(SourceFile:533)
at commons.c.renderViewPort(SourceFile:645)
at commons.c.a(SourceFile:699)
at commons.c.render(SourceFile:686)
at commons.JIWApplication.update(SourceFile:338)
at com.jme3.system.lwjgl.LwjglAbstractDisplay.runLoop(LwjglAbstractDisplay.java:151)
at com.jme3.system.lwjgl.LwjglDisplay.runLoop(LwjglDisplay.java:197)
at com.jme3.system.lwjgl.LwjglAbstractDisplay.run(LwjglAbstractDisplay.java:232)
at java.lang.Thread.run(Unknown Source)

ing and i am missing some ground just empty to inside . here is a copy of my error message