AutoCAD Plant 3D

[#1]

I keep getting this error message, "FATAL ERROR: Unhandled Access Violation Reading 0x0054 Exception at 13580aafh". Does anyone know what this means???

[#2]

remove all files from

.....\AppData\Local\Autodesk\AutoCAD Plant 3D..... \R19.0\enu\GraphicsCache\