Hi @Dmitrii-0 ,
Could you please tell us what NVIDIA GPU you have?
About the missing folder: we ship pre-build kernels which should be OK for most of the systems and we don't ship the source code hence the missing folder when it tries to rebuild for your GPU which might not be supported by the shipped kernels (see: https://docs.blender.org/manual/en/latest/render/cycles/gpu_rendering.html#cuda-error-kernel-compilation-failed).