A few things could be happening.
Debugging tips for rendering:
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Your video card drivers are out of date, or corrupted. > Download new version of the Studio Driver from NVIDIA and perform a “clean install” of the new drivers.
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Your PC is overheating or running out of power. > Make sure it’s well-ventilated, check for dust around fans, make sure power supply is connected. Close some other apps if you have lots of things open. Try rendering using different modes (eg CPU only, rather than CPU+GPU)
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Your model is too complex or your rendering settings are too high > Render a different SketchUp model to check if the system is working. Reduce the rendering resolution to something like 800x600. Render part of the model eg delete some parts and render those. Check your Windows Task Manager (Performance tab) to see if your system Memory or GPU Memory are at 100%. Check your Disk space capacity.
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Part of your model is incompatible with VRAY. This can happen with certain materials or rendering settings. > Simplify the settings (eg turn off any complex shaders or environments…try rendering in Clay mode). If that works, then look for any materials in your model that are JPGs, PNGs or similar, imported from other sources…something you added recently may be causing the crash. Look for any that have foreign language file names and change the names.
Usually renderers are pretty good at giving your warnings eg “disk space full” or “insufficient video memory”.
Your crash points to something in your system that’s not running as it should.
Do some testing with different SKP models and then report back with a clear description of exactly what is happening prior to the crash.