I bought the game, played 2 days without any problem but then yesterday the next happened

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(sorry its in hungarian)
So it says the " GFSDK_TurfEffects.win64.dll not designed for Windows, or contains error. Try to reinstall the program or contact with the distributor.

I've reinstalled the game today and then there was no problem i've played again without any problem but then after a couple of hours tried to play again but then the same error happened again cant start the game because of this " GFSDK_TurfEffects.win64.dll " error.

I hope somebody have an idea to fix it.

Thanks!

edit: GFSDK_TurfEffects.win64.dll and NvVolumetricLightning.win64.dll - these two are the problem.
(I've looked the two file and the both file's size are 0kb)