Tesseract_fast trained data cannot be used in .NET wrapper Tesseract4.0 engine

[MerlinArul]

I am using tesseract 4.0 .net wrapper dll and tying to use tesseract_fast trained data, but it is not gettng instialized and it throws an unhandled exception (read write) . I tried with engine mode "Lstmonly" and "default" but couldn't intialize. Kindly help me whether i am using in a wrong way or i should not used this fast traineddata.
Error is as follows

[zdenop]

We do not provide support for 3rd party project unless you are able to reproduce error with tesseract executable,