[Java] Voxy causing minecraft to crash on launch

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im using the ultimate voxy modpack, and i also use the euphoria patches + complementary shaders mod. i also use chunky and c2me. i finished loading chunky successfully after about an hour, voxy disabled and shaders/texture packs off.

After loading chunky finished, i started off with about 200 fps, then every second the fps dropped by about 10fps until eventually my minecraft crashed. I could no longer launch that instance of minecraft from prism launcher after this.

when i disable voxy, it all works. im honestly puzzled, and id really like voxy because i love the look of the incredible worldgen. please help!