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You are most likely running out of RAM. Vulkan needs a good amount of VRAM and you have no dedicated graphics card so the normal ram is shared for this. 8 GB RAM is already quite little for yuzu and your graphics card is taking part of that which exacerbates the issue. You can try setting a large pagefile but that will hurt performance as well although that should stop it from crashing because of running out of RAM.
yes, getting another 8GB would be a lot better. With the current situation I would set the pagefile at like 16GB (set it minimum and maximum 16GB so it doesn’t resize it all the time)